Fertilising a planted aquarium is one of the cheapest parts of the hobby - a budget all-in-one plus occasional root tabs costs only a few hundred rupees and lasts months. DIY dry salts are cheaper still for large tanks. Here's what actually drives the cost.
What you pay for
- An all-in-one liquid - the main ongoing cost. A budget bottle like Sunken Garden Green lasts a small tank for months; premium Seachem Flourish costs more.
- Root tabs - only for root-feeders, replaced every few months (Sunken Garden Root Tabs).
- Extras (optional) - single elements like Iron or Potassium, or liquid carbon, only if your tank needs them.
Budget vs premium vs DIY
- Budget: a Sunken Garden all-in-one plus cheap root tabs - the lowest ready-made cost, fine for most tanks.
- Premium: the Seachem Flourish system - costs more but gives precise control (see Seachem vs budget).
- DIY dry salts (EI): cheapest per dose for big tanks - see EI dosing and homemade fertiliser.
How to keep costs down
Dose the right amount, not more (see our dosing guide), buy concentrated all-in-ones, and use root tabs only where needed. Our cheap fertiliser guide has the best-value picks. (Prices vary - check current listings.)
Frequently asked questions
How much does it cost to fertilize a planted aquarium in India?
Very little - a budget all-in-one plus occasional root tabs is a few hundred rupees and lasts months; DIY dry salts are cheaper for large tanks.
What is the cheapest way to fertilize a planted tank?
DIY dry salts via EI dosing for large tanks, or an India-made all-in-one like Sunken Garden Green for small tanks.
Do I need expensive fertilizer?
No - budget all-in-ones grow most low-to-mid-tech tanks well; premium systems mainly add precision.
How long does a bottle of fertilizer last?
A small all-in-one bottle can last a nano or small tank for months, depending on dose and tank size.
Are root tabs an ongoing cost?
Only for root-feeding plants, and they're inexpensive - replaced every few months.
Is DIY fertilizer worth it to save money?
For larger tanks, yes - dry salts cost far less per dose, though they're less convenient than a bottle.
Fertilise for less with affordable Sunken Garden fertilisers and root tabs from Fish Bazaar, delivered across India.
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