i got my 29 gallon full salt now with only one inhabitant...a 3.5" green spotted puffer. i have a large base rock in the tank (dont know the kind of rock but its very porous and will turn into "live rock" eventually) i plan on gettin actual cured live rock from the store within a couple months so i can get some corals and anenomes. the problem is that i have a plastic top that isnt able to add more light or even space for powerheads. is there all-glass tops that are made for a standard 29 gallon? and is there many corals/mushrooms/anenomes that will withstand the hard teeth and powerful jaw of my GSP?