Fertilising is the easiest way to keep aquarium plants lush and green — but how often should you actually do it? Here’s a simple, low-tech-friendly answer.

The simple rule

For most low-tech tanks, dose a liquid all-in-one fertiliser once a week, right after your weekly water change. Follow the bottle’s dosing for your tank volume.

Signs your plants need feeding

• Yellowing or translucent leaves (often nitrogen, potassium or iron).
• Slow or stalled growth.
• Small holes or pale new leaves.

Don’t overdo it

More isn’t better — excess nutrients feed algae. Stick to a consistent weekly schedule, and for heavy root-feeders like Cryptocoryne and swords, add root tabs in the substrate.

Keep your plants thriving with our aquarium plant fertilizers — delivered across India.