I was wondering how often people vacuum there gravel. I have a 125 gallon tank with 5 parrots 2 severums and a 13" silver arowana. I do have lot of real plants in the tank. It would be a pain to have to uproot the plants all time to clean the gravel. But I seem to have a high phosphate level and no matter how many water changes I do I still have the phosphate and always a slight cloudy look to the water. I should add here that I am very familiar with testing water and have a 8 stage RO/DI water system I use for my 300g saltwater tank. I am using the same water for the freshwater tank. I don't think I have a large bio-load, but would using a wet/dry filter help at all. The salt tank is crystal clear. :1zhelp: