Any good inert substrate (low fert) for Low Tech setup?

[torque6]

Hello, been looking at Eco complete black for some time but seems Green Chapter, Mizuworld, Fresh and Marine don't seem to carry it.

Gex has a best bio sand series in granular form which is nice.

I could also use shrimp only sand in low tech tanks.

Any recommendation ?

[torque6]

Just spoke to Paul from Reinbiotech (GEX), he gave a detail description on the sand. However, seems there is no feedback on the durability of the grans (whether do they break easily or turn to mud after 12 months), but he cited no complains.

Very friendly and professional guy. Recommended.