Vallisneria (tape grass or eelgrass, including the giant jungle vallisneria) is a hardy, fast-spreading background plant with long ribbon leaves that grows in low to medium light, tolerates hard Indian tap water and spreads by runners, so a few plants can fill the back of a tank within two to three months. It is rooted in the substrate, so it feeds mostly through the roots and does best with root tabs. This guide covers the types of vallisneria, light, water, planting without burying the crown, fertilizer, runners and trimming, the best fish and tanks for it, and what to do when the leaves melt or turn brown.
Quick answer: Plant vallisneria with the crown (where leaves meet the roots) just above the substrate, give it medium light for 7-8 hours and keep water at about 20-28 C. Push a root tab beside each clump every two to three months and add a little liquid fertilizer weekly. It can melt back for one to two weeks after planting and then sends new leaves and runners.
Vallisneria at a glance
| Trait | Details |
|---|---|
| Scientific names | Vallisneria spiralis, Vallisneria americana and giant or jungle vallisneria (Vallisneria gigantea) |
| Origin | Rivers, lakes and slow waters of tropical and temperate regions worldwide, including India |
| Plant type | Rooted background plant with long ribbon leaves |
| Light | Low to medium |
| CO2 | Not needed |
| Temperature | About 18-28 C |
| Water | Soft to hard water; copes well with hard water, pH roughly 6.5 to 8 |
| Growth speed | Medium to fast once rooted |
| Height | 30-60 cm for common vallisneria; jungle val can reach 60 cm or more and may float on the surface |
| Difficulty | Easy |
| Spreads by | Runners that produce daughter plants |
Why vallisneria suits Indian aquariums
Vallisneria occurs naturally in Indian rivers and ponds, copes with hard tap water and does not need CO2, so it is often one of the easiest background plants for beginners in cities with hard or borewell water. It also tolerates moderate temperature swings. The long leaves give fish cover, break up the back glass and hide filter pipes and heaters. It is a good first choice if you are comparing plants in our beginner aquarium plants guide, low-tech planted tank guide or fastest growing aquarium plants article.
Types of vallisneria compared
| Type | Leaf and size | Best use | Notes |
|---|---|---|---|
| Vallisneria spiralis (straight or common) | Narrow ribbon leaves, about 30-50 cm | Back and sides of 2-3 foot tanks | Most common; spreads by runners |
| Vallisneria americana | Slightly wider leaves, 40-60 cm | Large tanks | Often sold as American vallisneria |
| Jungle vallisneria (V. gigantea) | Wide, long leaves, 60-100 cm | Tall tanks of 3 feet and above | Can reach the surface and float; trim often |
| Twisted or corkscrew vallisneria | Spiralled leaves, 20-30 cm | Medium tanks, centre or back | Slower growing and more compact |
| Dwarf or Italian vallisneria | Shorter leaves, 15-30 cm | Nano and small tanks | Good for tanks under 2 feet |
Choose the type by tank height. In a tank under 45 cm tall, common or dwarf forms keep a neat back line, while giant forms will reach the surface and shade the tank unless trimmed regularly.
Light and CO2
Vallisneria is happy under low to medium light for 7-8 hours a day. In bright light it grows faster, but it also catches algae on the leaf tips if nutrients are unbalanced. See our planted aquarium lighting guide and how many hours to run an aquarium light. For 2-4 foot tanks the Sobo AL-480 (21W) (₹1,500) provides enough light across the length of the tank. Vallisneria does not need CO2; see our low-tech planted tank guide.
Planted tank lights by tank size (Fish Bazaar range)
Pick the row that matches your tank length, then choose by plant level: the cheaper full-spectrum lights suit low to medium light plants such as Anubias, Java fern and Cryptocoryne, while the Chihiros WRGB II Pro and B Series are built for red plants, carpets and CO2 tanks. Tank length is the longest side of the glass. Prices are in rupees as listed on Fish Bazaar on 9 October 2026 and can change, so check the product page for the current price and stock.
| Tank length | Light | Power | Best for | Price (INR) |
|---|---|---|---|---|
| Nano, about 20 cm | Sobo AL-180 COB | 8W | Easy low-light plants: Anubias nana, mosses, Bucephalandra, small Crypts | ₹890 |
| Nano, about 20 cm | BluePet N6 Neo+ | 6W | Easy low-light nano plants; full spectrum | ₹550 |
| Nano, about 20 cm | Chihiros B Series (B 20) | White + RGB, app control | Medium to high-tech planted tanks; tunable colour | ₹4,900 |
| Nano and small tanks (about 20-40 cm) | Neo Helios Flat Nano S3 Plus | 13W | Low to medium light: Anubias, Cryptocoryne, Java fern, easy stems | ₹1,050 |
| Nano and small tanks (about 20-40 cm) | Neo Helios Flat Nano S3 Pro+ (10000K) | 13W | Low to medium light; cooler 10000K full spectrum | ₹1,250 |
| Nano and small tanks (about 20-40 cm) | Blue Pet Flat Nano S3 WRGB | 10W | Easy low-light nano plants; WRGB colour | ₹850 |
| Nano and small tanks (about 20-40 cm) | Blue Pet Flat Nano S4 WRGB | 16W | Low to medium light; more penetration than the S3 | ₹1,010 |
| 30-40 cm (about 1 to 1.5 ft) | RS Electrical RS-S13 clip-on | 12W | Low to medium light; clip-on for rimless tanks | ₹860 |
| 30-40 cm (about 1 to 1.5 ft) | RS Electrical RS-L13 clip-on (10000K) | 12W | Small planted tanks; clip-on, full-spectrum beads | ₹850 |
| 30 cm | Chihiros B Series (B 30) | White + RGB, app control | Medium to high-tech; red plants | ₹5,900 |
| 30 cm | Chihiros WRGB II Pro (30) | 4-in-1 WRGB, app control | High-tech tanks with demanding plants | ₹22,000 |
| 30 cm | Chihiros WRGB II Slim (30) | WRGB, app control | Planted and high-tech; use CO2 and dosing for demanding plants | ₹11,600 (sold out at time of writing) |
| 40-50 cm (about 1.5 ft) | Sobo AL-380 COB | 15.5W | Low to medium light: Anubias, Crypts, Java fern, easy stems | ₹1,230 |
| 45 cm | Chihiros B Series (B 45) | White + RGB, app control | Medium to high-tech; red plants | ₹6,500 |
| 45 cm | Chihiros WRGB II Pro (45) | 4-in-1 WRGB, app control | High-tech tanks with demanding plants | ₹26,000 |
| 45 cm | Chihiros WRGB II Slim (45) | WRGB, app control | Planted and high-tech; use CO2 and dosing for demanding plants | ₹12,000 (sold out at time of writing) |
| 50-60 cm (about 2 ft) | Sobo AL-480 COB | 21W | Low to medium light; add CO2 and dosing for carpets and red plants | ₹1,500 |
| 50-60 cm (about 2 ft) | Neo-Helios XP-300 (up to about 2-2.5 ft) | 16W | Small to medium planted tanks; many medium-light plants | ₹3,450 |
| 60 cm | Chihiros B Series (B 60) | White + RGB, app control | Medium to high-tech; red plants | ₹7,200 |
| 60 cm | Chihiros WRGB II Pro (60) | 4-in-1 WRGB, app control | High-tech tanks with demanding plants | ₹31,999 |
| 60 cm | Chihiros WRGB II Slim (60) | WRGB, app control | Planted and high-tech; use CO2 and dosing for demanding plants | ₹15,000 (sold out at time of writing) |
| 80 cm (about 2.5 ft) | Chihiros B Series (B 80) | White + RGB, app control | Medium to high-tech; red plants | ₹9,800 |
| 80 cm (about 2.5 ft) | Chihiros WRGB II Pro (80) | 4-in-1 WRGB, app control | High-tech tanks with demanding plants | ₹37,999 |
| 90 cm (3 ft) | Neo-Helios XP-600 (3 ft and up) | 32W | Medium to large planted tanks, including more demanding plants | ₹5,050 |
| 90 cm (3 ft) | Chihiros B Series (B 90) | White + RGB, app control | Medium to high-tech; red plants | ₹10,700 |
| 90 cm (3 ft) | Chihiros WRGB II Pro (90) | 4-in-1 WRGB, app control | High-tech tanks with demanding plants | ₹41,999 |
| 90 cm (3 ft) | Chihiros WRGB II Slim (90) | WRGB, app control | Planted and high-tech; use CO2 and dosing for demanding plants | ₹20,000 (sold out at time of writing) |
| 120 cm (4 ft) | Neo-Helios XP-1200 (4 ft and up) | 64W | Medium to large planted tanks, including more demanding plants | ₹5,850 |
| 120 cm (4 ft) | Chihiros B Series (B 120) | White + RGB, app control | Medium to high-tech; red plants | ₹11,500 |
| 120 cm (4 ft) | Chihiros WRGB II Pro (120) | 4-in-1 WRGB, app control | High-tech tanks with demanding plants | ₹52,999 |
| 120 cm (4 ft) | Chihiros WRGB II Slim (120) | WRGB, app control | Planted and high-tech; use CO2 and dosing for demanding plants | ₹24,000 (sold out at time of writing) |
| Specialist Chihiros (tank size not stated on the product page) | Chihiros A II 801 | White LED, app control | Densely planted freshwater tanks; acrylic stand, no metal legs | ₹11,500 (sold out at time of writing) |
| Specialist Chihiros (tank size not stated on the product page) | Chihiros RGB Vivid II Mini | RGB, app control | The most demanding plants; mount or pendant versions | ₹27,400 pendant, 28,800 mount (sold out at time of writing) |
Chihiros sizes (30, 45, 60, 80, 90, 120) match the tank length in cm. Wattage alone does not decide plant growth, so match the light to your plants and add CO2 and fertilizer only if you want demanding species. Not sure which light fits your tank? See the full aquarium light range or message us with your tank size.
Water and temperature
Vallisneria prefers neutral to slightly hard water, and a pH from about 6.5 to 8 suits it. It appreciates minerals such as calcium, so it often grows better in hard water than in very soft water. Keep the temperature between roughly 18 and 28 C. In very hot summers shade the tank, keep the water moving at the surface and avoid sudden temperature swings. Use a conditioner such as Sunken Garden Anti Chlorine (₹290) on water changes; our water conditioner guide explains the dose.
Substrate, root tabs and fertilizer
Vallisneria is a heavy root feeder. Fine gravel or sand 4-6 cm deep holds the roots well, and a nutrient-rich soil gives even better growth; see our planted tank substrate guide and planting aquarium plants in gravel. Push a root tab such as Sunken Garden Root Tabs (₹290) into the substrate beside each clump every two to three months, and add a weekly dose of an all-in-one such as Sunken Garden Green (₹490) for the leaves. Pale, yellowing or very thin leaves usually point to a nutrient shortage; read the root tabs guide, aquarium plant fertilizer guide and nutrient deficiency in aquarium plants.
How to plant vallisneria
- Rinse the plants and quarantine them; see how to dip and quarantine new plants.
- Separate the bunch into single plants and trim long, damaged roots to about 3-4 cm.
- Trim very long leaves to about half their length to reduce stress on the plant.
- Make a small hole in the substrate and place the roots in it.
- Cover the roots but keep the crown above the substrate, because a buried crown rots.
- Space the plants 3-5 cm apart and add a root tab beside each clump.
- Leave for two weeks while the plant adapts; new leaves start from the centre.
See how to plant aquarium plants for other methods and plant holders, pots, weights and glue for tools that help hold new plants down.
Runners, spreading and trimming
Once vallisneria settles, it sends out thin runners along the substrate that produce daughter plants. This is how a few plants become a thick background. To control spread, pull out unwanted daughter plants by hand and plant them elsewhere or share them. To trim, cut the longest leaves near the base with sharp scissors; they regrow from the crown. Do not cut leaves in the middle, because the cut tip dies back and turns brown. Giant types can reach the surface and form mats, so trim them every few weeks if you want light to reach plants below. See how to propagate aquarium plants and aquarium plant maintenance for a trimming routine.
Using vallisneria in your layout
Plant vallisneria in a row or loose clumps along the back and sides, and keep the front for shorter plants such as Cryptocoryne and Monte Carlo. Leave a gap of a few centimetres between the clumps and the glass for runners. In a 2-3 foot tank, five to eight plants are enough to start. A wavy line of leaves moves in the filter flow, which gives the tank a natural look; see our aquascaping guide for layout ideas.
Common vallisneria problems and fixes
| Problem | Likely cause | Fix |
|---|---|---|
| Leaves melt after planting | Plant adapting from emersed growth or stressed in transit | Keep conditions steady; new leaves grow from the crown |
| Leaf tips turn brown | Cut leaves, low nutrients or very hard or very soft water | Trim at the base and add root tabs |
| Leaves yellow and thin | Low iron or nitrogen | Add all-in-one fertilizer and a root tab |
| No runners | Low nutrients or crown buried | Check the crown and add root tabs |
| Plant floats up | Crown pulled out by fish or planted too shallow | Replant and cover roots; use a plant weight if needed |
| Algae on the leaf edges | Strong light and low nutrients | Reduce the light period and add nutrients |
| Crown rots | Crown buried under the substrate | Replant with the crown above the substrate |
See why aquarium plants melt or turn brown and yellow for more fixes and does fertilizer cause algae if algae appears after you add fertilizer.
Which fish and tanks suit vallisneria
Vallisneria works with most community fish, livebearers, rasboras, barbs and many cichlids, because the leaves are tough and the plant regrows from the crown. Goldfish and some large cichlids may uproot or nibble the leaves; use root tabs and heavy substrate and expect to replant. See goldfish care, cichlid care and guppy care. Bettas do well with vallisneria in a tank with gentle flow, but long leaves can tangle in strong filters; see aquarium plants for betta fish. For a wider list, read best fish for a planted aquarium. Use a gentle filter such as a sponge filter for long-leaved plants; see filters for planted tanks.
Choosing healthy vallisneria
Look for plants with firm green leaves and white or light brown roots. Avoid plants with transparent, mushy or black leaves, and avoid plants with no roots at all. Do not worry if the leaves are cut at the tips, because they will regrow, but make sure the crown at the base is green and firm. Unpack plants the day they arrive, rinse them in conditioned water and plant them promptly. Buy a few more plants than you need because some may melt while adapting.
Buying vallisneria in India
Vallisneria is sold as bunches of bare-root plants, potted plants and tissue-culture cups. Choose a seller whose plants are grown submerged and ask whether the plants were grown emersed, because emersed plants melt more. See where to buy live aquarium plants in India for a buying checklist and tissue culture plants for pest-free options. At the time of writing, Fish Bazaar does not list live vallisneria on the store; we stock the lights, fertilizers, root tabs and conditioners shown above, and you can message us on WhatsApp for help planning your tank.
हिंदी में संक्षेप: वैलिसनेरिया (टेप ग्रास) एक मज़बूत बैकग्राउंड पौधा है जो कम से मध्यम रोशनी में चलता है, CO2 नहीं माँगता और भारत के कठोर पानी में भी ठीक रहता है। इसे बजरी या रेत में लगाएँ, जड़ें दबाएँ लेकिन बीच का क्राउन (जहाँ पत्ते जड़ से मिलते हैं) मिट्टी के ऊपर रखें। रोज़ 7-8 घंटे रोशनी दें, हफ़्ते में थोड़ी तरल खाद और 2-3 महीने में रूट टैब दें। रनर से नए पौधे बनते हैं, इसलिए कुछ पौधों से पीछे की दीवार भर जाती है।
Frequently asked questions
Is vallisneria easy to grow in an aquarium?
Yes. It grows in low to medium light, tolerates hard water and does not need CO2. It spreads by runners once rooted.
How do you plant vallisneria?
Place the roots in the substrate and keep the crown, where the leaves meet the roots, above the surface. Add a root tab beside each clump.
Why is my vallisneria melting?
Plants often melt for one to two weeks after planting while they adapt, and new leaves then grow from the crown. A buried crown or lack of nutrients can also cause melting.
How tall does vallisneria grow?
Common vallisneria grows 30-60 cm. Giant or jungle vallisneria can reach 60-100 cm and may float on the surface.
Does vallisneria need CO2 or root tabs?
It does not need CO2, but it is a heavy root feeder and does best with root tabs every two to three months.
How do you trim vallisneria?
Cut the longest leaves near the base with sharp scissors. Cutting in the middle leaves brown tips.
What is the difference between vallisneria and jungle val?
Jungle vallisneria has wider, longer leaves that can reach 60-100 cm, while common vallisneria is narrower and shorter.
Why is my vallisneria not spreading?
Common causes are low nutrients, a buried crown or too little light. Add root tabs and check that the crown is above the substrate.
Can goldfish live with vallisneria?
Vallisneria is tougher than many plants, but goldfish may uproot or nibble it. Use root tabs and a heavy substrate.
What light does vallisneria need?
Low to medium light for 7-8 hours a day. Bright light speeds growth but needs more nutrients to avoid algae.
Related plant guides
- Aquarium plants for fish tanks: the complete India guide
- Beginner aquarium plants
- Fastest growing aquarium plants
- Root tabs guide
- Planted tank substrate guide
- How to propagate aquarium plants
- How to plant aquarium plants
Planning a planted tank with vallisneria and unsure about lighting or root tabs? Message us on WhatsApp at +91 91523 30102 and we will help.
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