I have an extra 20g, fluval e300 heater, lights, and fluval 205. Looking for a simple low maintenance set up with shrimp, snails, and a betta. Aquascape will concist of a large piece of driftwood, sand, and a couple anubis or Java fern plus a moss ball. My 125 and 36 are fairly well stocked and get a 50% wc each week but this tank will be a much lighter bioload so I was wondering how little work can I get away with.