everything i have read states it is aquarium and reef safe. there are alot of people who use it as the sand in there tank with out any problems including a couple totms nano reefs. i didnt use it without researching first
even in a tank that big there wont be enough copepod growth for both??another thing is you can either keep a wrasse or a mandarin. They compete for the same food and the wrasse with win every time and the mandarin will "DIE".
Not with two mandarins and two wrasses and some Dottybacks.even in a tank that big there wont be enough copepod growth for both??