Hi All, I going to be downsizing from a 120 to either a 45g or 60g cube from marineland. Going to drill it and install a gl******* overflow. My question is I have a 24" tek 5, 4 bulb w/ ati bulbs, will this work on either one. one is 18" tall and the other is 24". I'll be keeping lps,softies,zoas. Any input would help. Thanks Peter