Tetra Active Substrate

A natural substrate which provides a plant friendly soil climate and lush, healthy plant growth. The large surface and the porous structure of the water neutral clay granules offer several advantages compared to conventional gravel.

Promotes the settlement of beneficial soil bacteria – reduces organic water pollution – relieves the filter and ensures clearer water – supports the cycling time of the aquarium.

Avoids the formation of soil compaction – provides an optimal soil structure – prevents root rot.

Benefits the fast rooting of plants – guarantees a firm grip as also fine roots are able to anchor in the clay pores.

Provides plants roots optimally with nutrients – allow a constant water circulation by 50% more water permeability compared to conventional gravel – promotes a strong and healthy plant growth.

Natural, attractive optic – rounded shape protects bottom fish from injuries – water neutral. 

For all fresh fish aquariums

Aquacadabra acts as credit broker/intermediary and not as a lender.

Klarna's credit products are provided by Klarna Bank AB, which is authorised and regulated by the Swedish Financial Services Authority, with limited supervision by the Financial Conduct Authority. More information can be found here.

Newpay finance options are provided through Deko’s platform by NewDay. P.D. Aquatics Ltd, t/a Aquacadabra is an Introducer Appointed Representative of Pay4Later Ltd, t/a Deko, which is authorised and regulated by the Financial Conduct Authority (ref no 728646) and is a credit broker, not a lender. NewDay Ltd is authorised and regulated by the Financial Conduct Authority (ref no 690292) and is authorised by the Financial Conduct Authority under the Payment Services Regulations 2017 for the provision of payment services (ref no 555318). More information can be found by clicking the newpay option above, or in the Newpay FAQs.

We really want you to be happy with the product that you've received. If however, when the goods arrive they're not what you want, then no problem - we have a 60 day no quibble return guarantee. Just let us know that you're going to return the item(s) by contacting us (stating your Order Number) and complete the returns packing slip that will have been included with your delivery. This will help us to quickly identify the item that you have returned (unopened and unused) - and we'll put a refund through for you.