I have 2 X 12g and 1 X 24g JBJ nano cubes currently. Although I am happy with these I do find them to be lacking in light requirement for some corals. On my 24g. I removed the lid and have a 175MH light with 2 VHO actinics in a hanging fixture. I was really unimpressed with JBJ's service however - I had a 24g break on me 2 days after setting it up and could not get any response from them at all and as I bought if off e-bay the seller was not willing to work with me either. Chris from Nano tuners was excellent and I ordered a replacement tank from him as well as replacement light tubes for my other 2 tanks. I have ordered and am waiting on this tank
http://nanotuners.nanocustoms.com/na...roducts_id=208
It is supposed to be fairly cool and I will be replacing the 12g at my office with this new tank.