hey i was wondering if anyone can tell me why my sand (crushed coral,substrate) i put in my 75gal saltwater is turning brown i have no fish in my tank yet its only been up 3 or 4 weeks i have live rock and live sand (supposedly) in there and all of a sudden it is turning brown???
I agree, diatoms. You may want to rethink the CC mixed with sand. I did the same thing and in about 3 months decided I couldn't stand the CC. I had to take out the CC and used a sifter to sift out the sand from the CC, WITH fish and rock in the tank.
Age is relative, you are only as old as you act....of course, this works in reverse....
I`m not Scott but The CC is bigger and heavier and will trap debris and waste and cause higher nitrates. It needs to be cleaned more often while sand can be taken care of by a clean up crew. The sand will eventually work it`s way to the bottom leaving the CC at the top.