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Probably the Hawaii I have the indigo it has some black in it. And no algae problems ever.Can someone tell me what the "blackest" sand is ? and is it ok to use? any negatives?
ambient light maybe?Also im not sure refracted was the word I was searching for lol diffused is probably more appropriate
I think reflected is the word you're looking for ...ambient light maybe?
I had black sand once ...kept it about a year or so, don't remember any problems with it, just got tired of it, added white ...that didn't look good. looked like salt&pepper. ..have used plain white ever since then.Probably lol lets face it, english isnt my strong suit. In any case, i love my black sand. Just sharing my experience
try argonite or sand from the beachWhat sand would work the best if I plan to set up an underwater waterfall?