Yeah i have the magnetic scrapes but thats the hardest thing to keep clean, I find with the bigger tanks once its settles its doesnt need that much work. Im setting up overflow valves and a tap timer to do small auto water changes every day (small means the chorine isnt a problem as it is very unstable and disperses within a day). I have algae eaters in some tanks but none large enough to put with oscars and I prob wouldnt anyway because if they ate it the barb may proove to be a problem.