This tank is simply equipped, with two biological filters: one regular Oxygen Plus Bio-Filter, the other one is DIY plus. The DIY one is easy to made:
1. place the regular Oxygen Plus Bio-Filter in a quart container;
2. fill the rest space in the quart with ADA soil;
It works better to lower the pH level.
We clean the bottom every two days for most of time. When necessary, we may do more. Suck out waste and the left-over food. No problem with sludge and mug. And no problem with planaria or round worm, since there's no place to hide.
a crystal red shrimp hang over the sponge
They are doing pretty well so far!
The bottom is like a mirror, pretty but not easy for crs to walk around now. But it will get better after moss grows over the bottom.
Hm, time to clean it now!