I picked up a bunch of sheets of this for my frag tank and only used a couple.
I have no idea whether the other stuff (polystyrene I think) really does leach Phosphates or cause algae to grow on it, but this stuff was basically the same price and I figured why not.
Anyone need some? $15 for a 2x4 sheet.
I have no idea whether the other stuff (polystyrene I think) really does leach Phosphates or cause algae to grow on it, but this stuff was basically the same price and I figured why not.
Anyone need some? $15 for a 2x4 sheet.