I use eggcrate, like they use for fluorescent fixtures. Doesn't block light, allows circulation, keeps fish in.senos said:well... I think I figured it out partially. I removed the glass covers and the temp dropped a few degrees. What is everyone using over their tanks? I completely removed the glass from mine. Is this ok? or will the fish jump out? I still have the wood canopy over the tank but it lets air escape easily. I may install some fans as well, but I wanna make sure its ok that I leave the glass covers off. I can deal with the evaporation. Opinions?
-Dave
You might ge a cheap clip-on fan for the sump, in case you want a little more cooling.