If you had the slits on the bottom of the overflow boxes, you wouldn't have a problem. The water is still only going to drain from the top of the overflow tube.aquatic_wonders;1292041; said:so what happens if becomes if suddenly there's no electricity if he did it up side down...anyway good job on that DIY overflow box.
I used acrylic latex paint. I brushed it on with a foam brush, after masking it with painters tape.goldenchild;1307368; said:what kind of paint and technique did you use for your tank?