is there anyway to do a overflow without drilling holes please help. it is a 55 gal reef tank ,running for 1 year 70 lbs live rock a leather , aton of zoos ,exina,hammer coral ,frog spawn, kenya tree coral , flame angle , purple dodyback, 2 firefish, jawfish , it has a externl prism protein skimmer, 2 seio 620 gph powerheads , a fluval 304 (yes it sucks) ,and corallife 130 watt 50/50 compacts. I hate the fluval and would like a sump but dont want to drill holes or I'm going to get a "EHEIM" filter. I dont want to drill holes because when I buy a house in about a year I will buy a 150 - 200 gal tank and do it right