Okay, so I have an 8 inch Pleco that I am holding for my girlfriend until Jan. I have been feeding it cukes and the seeds tend to hang around the tank, on the gravel and in the filter. Related (or at least I believe so) is I have a problem with algae in my tank. I clean my tank and check the various things such as pH, etc and all seem to be normal (except for the pH which is a little high before a tank change). What is going on, I hear of other people feeding cukes to their pleco and having none of the problems I seem to have, thanks for the help.