Quote:
Originally posted by Musho3210
NO! Why would you use inert silicate sand in tanks that should have non inert, beneficial, aragonite (calcium carbonate) sand? That playsand belongs in 3 things, playgrounds, pool filters, and freshwater tanks. Silicate is what brown algae feeds off of anyway.
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I have had playsand in my tank for a year with no issues with brown algae at all.... you yourself said silicate sand is inert... what is glass made of silica... so does brown algae feed off the glass ?