White silica sand: Does it alter Ph? | UK Aquatic Plant ...
Apr 23, 2017· White silica sand: Does it alter Ph? Discussion in ''Substrates'' started by Robbie X, ... No likely not, what it could do, what many poeple experience using silica based substrate like sand and gravel is a higher amount of diatom algae after startup. Having diatoms after startup is very common if not the case for everyone, this is a cycle you ...