Haha! once a week on all but the mbu tank, he cost me 60 bucks and hes my pride and joy! so twice a week on his tank. Still need work doing on the gsp tank, backing to stop the light coming through etc.
Down to the filter inlet on the mbu tank, roughly 30 percent. about half the water on the cichlid tank, same with the gsp. Getting some fugu puffers to replace the cichlids soon hopefuly