cynot
New member
I'm new to this hobby and have just set up a nano-cube 24 gal. salt tank. It's been up for about six weeks now and houses 4 damsels, a diamond goby, and a sand sifting starfish. It has a 4 inch live marine sand base, about 20 lbs of live rock and a pipe organ frag. Just recently, all of the rocks started turning a redish brown. After a partial water change, I noticed that the salt content was really high. Could this be the culprit?