I’ve been told that my flow may be a problem as I’m only getting roughly 14 times turnover rate for the tank when it should be 20 but im still getting some build up of detritus on the sand bed. I do also have a bubble algae problem but as for clean up crew I have 2 trochus snails and 3 nassarius, is this enough or should I stock more? My tank is a basic softie tank with higher nutrients