Tropica Substrate

$3.38 ~~$5.36~~ In stock

Category: Aquarium Substrate

This is a plant nutrient growth media.

A concentrate, used under gravel when planning the aquarium
Ensures healthy and long-term growth
Is neutral and does not affect the KH or pH value of the water
The substrate absorbs nutrients and makes them available for plant roots

How to use the product

Plant Growth Substrate is laid in a 1 cm thick layer on the bottom of the aquarium, when the aquarium is built. The table below provides recommended Plant Growth Substrate amounts for a number of standard aquarium sizes.

Substrate Table

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Customer Reviews (4.8 / 5 · 4 reviews)

Ryan B. ★★★★★ Oct 20, 2026

My last tank had constant algae issues, but since layering this stuff under the gravel, the plants are finally taking off without throwing off my pH. The fact it doesn't affect KH or pH was a huge selling point for me.

Sophia ★★★★★ Oct 19, 2026

I was worried about messing with my water chemistry, but this stuff is completely neutral—my pH and KH haven't budged. It's a bit of a hassle to lay down before the gravel, but the plant roots are clearly loving it, and I haven't needed to add anything else in months.

Steven I. ★★★★★ Oct 18, 2026

Layer this under the gravel when you set up the tank and it's quietly working its magic for the plants. I love that it doesn't mess with my water's pH or KH, since I keep delicate fish. Roots are taking off noticeably faster than my last setup.