Changing blue acrylic to black?
I'm looking into stepping up to a large (140 gallon) tank and got excited when I saw a used acrylic tank for $700 with a great wood stand. My plan was to get into cichlids since I want more color, but don't want deal with salt.
Problem is after I joined this forum and looked around, I read more and more how a bright blue background swamps out the colors if cichlids. Is there any way to paint the background safely, or is the only option to build up the rear wall with rock (can't imagine how much rock/weight that would take)?