Tropica Plant Growth Substrate 2.5L

  • Model: 613
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Plant Growth Substrate acts as a long term nutrition store for waterplants, so ensuring magnificent and healthy waterplant growth. Plant Growth Substrate is a natural concentrate of clay and sphagnum, laid at the bottom of the gravel layer when you build your aquarium. Clay and sphagnum slowly release nutrients to waterplant roots and binds nutrition in the water in the bottom layer. Removing nutrition from water reduces the risk of undesirable algae growth.

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. 

A layer of gravel of minimum 3-4 cm thick is then laid over the substrate. The gravel acts as a barrier between the concentrated Plant Growth Substrate and the water. Plants are planted in the gravel in the normal way and new roots quickly form in the substrate. When planting, disturb the substrate as little as possible, to avoid clay and sphagnum particles being mixed into the water.

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by John G. on 13/8/2019

Excellent product fast delivery

by Stewart H. on 7/8/2017

Quick delivery,will have to wait and see how plants like it.

by gwen m. on 26/5/2017

this is the substrate i was recommended to use when i decided to plant my fish tank, its got the best growth rate and it is easy to root plants

by Margaret Gray on 8/3/2015

Having never used any plant substrate before I can't say if this is better or worse than other types, but I can say that so far have found this easy to use and the plants I already had and my new plants are happy and healthy growing in it, will certainly use this again if I have other tanks to plant up

Ask a question about this product
I am unable to zoom on the image (hovering does not work) or the table so cannot assess how much I would need. Aquarium is 160 x 60 cm


about 7L would be fine for your tank

Hello, My tank is 40 x 40cm. How much would I need please?

Pls see the image which advises of qtys versus tank size

can it be used with silversand


I don't recommend silver sand in planted aquariums. It compacts terribly and is only a cheap option which turns out to be a bad option.

do I still need to fertilise with seachem flourish when I have this in my new tank


yes, you will always need fertilisers

Can I cap this with Seachem Flourite Black Sand instead of gravel?


Yes you can


Yes you can

i am planning to use this with sand and have been told to lay this as describe then lay a layer of volcanic substrate on top of this then add the sand . do i really need 3 layers?


lay it on the bottom and top with substrate or gravel

can I use this on the bottom of the aquarium with CARIBSEA ECO-COMPLETE on top? I'm currently planning for a new (bigger) aquarium and want to grow plants perfectly, I have the lights, and CO2, just need to decide on the substrate. Thanks


you can do yes

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