We have owned our tank for about 6 months. Started out planted. Fish ate the plants. Still have plant gravel. Haven’t had plants for 3+ months. Our tank still has debri floating around everywhere. We do weekly water changes (10 gallons, 55 gallon tank) recently tried a purigen water filter “stage” in our eheim filter canister. How can we make our water clear. CLEAR! Is our gravel (plant gravel) the culprit? Do we need a better filter? (Eheim classic 250 w/ eheim surface slimmer intake) I guess I will go from here. Any and all help will be appreciated. We just want clear water.