I usually do a light cleaning every week to get rid of the surface debris. Every other week I do a deeper cleaning on one half of the tank. Deeper cleaning meaning down to about 3/4" to 1", and moving rocks and plants. This is also dependant on if, and what kind, of filter maintainance I may do. I avoid doing a deep cleaning of the gravel and a media change in the filters in the same week. This means the gravel gets totally cleaned once a month, and surface cleaned weekly to keep it looking good.
Tolak