I dirted my first tank today. I did a lot of things wrong and I corrected some of them but lets see how this goes. I capped it with play sand. I am attempting to make it an all shrimp tank. The problem is I am broke and I have a 3 gallon filter while the tank is 10 gallons. I have heard that an underrated filter is okay as long as there is a lot of plants in the tank. I am planning to make it a planted tank. Lots of plants. No CO2 and high lighting.