him6616
New Member
hey every body i have a 90 gal tank, i started it about 3 weeks ago and i have a rust like dust on my live rock and crushed coral bed. i have seen the cyanobacteria and it doesnt really look like that.i did not use any tap water i went to the aquarium shop and bought 90 gallons of salt water.if anyone has a clue as to what it is it would help thanks.
