I currently have a 20gal All Glass with a Emporer 280. I would like to get the SeaClear JR exec. kit 29gal which comes the the Whisper filter. My plan is to switch the filters, put the Whisper on the 20gal and put my Emporer on the new 29gal. My question is, is the filter slot on the SeaClear big enough for the Emperor? Does any one have other good advise concerning acrylic aquariums? I always had glass and know absolutely nothing about whats available in acrylic.