Here is the horticultural substrate, the pozzolan. At Culture Indoor discount prices.

Ofvolcanic origin, the pozzolan is a porous rock with red, black or gray colors.

Pozzolan it is used inaquariums, plant walls, bonsai culture, hydroponics and in the creation of biological pools.

In addition, pozzolan can be mixed with other hydroponic or non-hydroponic substrates toincrease the drainage capacity of the soil and also to increase the production of rootlets (fine roots responsible for the assimilation of surrounding nutrients), thanks to its structure with sharp edges.

The best prices on pozzolan are at Culture Indoor.