The best method is syphoning or anything that physically removes the waste from the tank. This way it doesnt clog the filters and contribute to the accumulation waste products. My main method to handle the waste is syphoning. In my 2 tanks I setup the flow so that the detritus settles in one place, there is also a mechanical filter there to pick up what I dont. On my tank with a 15.5" L190 (plus other plecs) I use a Eheim Powerline 2252 internal filter. On my other tank with 11 assorted Panaque I use a pressurised pond filter with solids handling pump.