i have a rio 125 which is about 28g. Was just wondering, If i removed the internal jewel filter (WHY THEY PUT THAT THERE!!!), and took away my eheim filter, would my water be ok with just 2x 800 powerheads and 20kilos of live rock aswell as a deltec mce300 skimmer?? There is only 2 percula clowns in there and a cleaner shrimp. would that be ok? I will continue to do regular water changes. 10% fortnightly!! let me know. thanks.