Activated Carbon & Plants

VerdantGrotto

I second Byron on the Filter. Although it isn't absolutely necessary, it will help maintain a cleaner and more clear tank. This coupled with Plants will provide whatever fish you introduce (Within Reason) a more stable environment. As far as the Tannins in the water, Weekly water changes of 25% should clear it up in about a month. Or 20% every other day for a week but this is a little more risky IMHO because of the chance for human error is greater (no offense).

However, I would like to warn you about something that I learned the hard-way and was even warned about. Mopani driftwood is prone to developing a fungus or mold type of growth on it. I never actually pinpointed the scientific name of what grew on my beautiful piece of Mopani but whatever it was it wreaked havoc on my tank and almost wiped out the entire population. So whatever you do, be alert for this "White Fuzz/Tiny White Hair" Fungus. At the first sign of it, remove the wood and give it a good scrubbing. Some people have had better luck than I did with Mopani but just in case, keep a close eye on it...

rexpepper651

oh i dont plan on not using a filter i just thought it was cool. yeah i was watching some of dustins videos an noticed he had a few tanks outside for growing that were topless and filterless but i take it they are plant only tanks. still neat tho