I never knew tangs can jump :(

[hawk]

Originally Posted by Tarolisol

Most tops are not good for gas exchange and glass tops will most likly break if you have metal halide lights, the lights will heat the glass and if any water splashes on the glass bang there goes the top. also if thers a wire mesh for a top there no way you can take it off for feeding you would have to ware oven mitts.

Plastic eggcrate allows for gas exchange. If your using mh, there is usually anywhere from 6"-12" between the water and lights which is plenty of room to lift the crate for feeding. It may depend on how your canopy is designed. Mine the whole front is hinged so it is easy to lift the crate for feeding or removing when I have to work in the tank. As far as blocking light, I can't tell the difference when the crate is on or off.