Faye

When you clean the tank you must not do a full water as this stresses the fishes way too much which makes them more prone to disease ect. you should do a 10-15% water change every week which encludes siphoning the muck from the gravel and then you condition the water and place the same amount you put back in. This was you don't spend tons of time cleaning, Approx 10 minutes a week and every odd week you should clean the ornaments. Also when you feed your fish after about 2 minutes you should net the remaining feed which would go off and contamenate the water. If you want I could write more or refurr you onto a great website I use for tips :]