I am in the process of converting the ATO tank that came with my Red Sea sump system into a frag tank. I've never used this ATO as I've a separate 55gl container and this tank is just collecting dust. I've all the parts needed laying around for this project so this is basically a free tank addition for me, plus the 90 gl frag tank I already have has too much light and flow for shrooms and zoa's to grow out in. The Frag/ATO tank will sit on top of the sump, as it was designed by red sea. To prevent light seepage through the bottom, I was thinking of painting the bottom of this tank black, using rustoleum oil based black paint. I've used this paint for painting the back of tanks, but never on the bottom where it would have constant exposure to saltwater. Considering that there will be condensation and likely salt build up on the bottom of this tank, I'm thinking that this paint could start to chip off over time and contaminate the water, so I'm hesitant to do it. So would it be a bad idea to do this or is this something that is commonly done? I'm not sure what paint people are using for plywood tanks, so I can imagine there is paint that is safe to use.
Thanks in advance for the advice!
-Eric
Thanks in advance for the advice!
-Eric