I just wanted to pop in and post some photos of the 20 long tank that me and wife have going. It currently is home to two tree frogs, two fire bellied toads, one fireb bellied newt, one fiddler crab, two algae shrimp, and a lot of feeder guppies.
We orignally had these guys in a 10 gallon tank for about 7-8 months but upgraded with the tax return.
The three plants we have in there all require high lighting and heavy watering. the two shorter plants in front were the first two plants in the tank and i noticed that the chemicals in their soil leaked into the water and turned it redish color. Give it a month or two and a weekly half water change and that will clear up. We just added the really tall plant to the tank as you can see the water has a red tint to it. There is some plant growth in the water that started off as a 6 inch clipping and was in with the newt when i brought him home from the animal store. This has since grown over four feet long and I had to trim it as it was almost over ran by an algae out brake. The water plant life has provided ample spawning area for the feeder guppies, which we started off with three and now have about 20 to 30.
They provide excellant cover for the crab when he is out of the water and the perfect perch for the tree frogs. The wood i took from the tree that used to be out in front of our house. I cured the wood for a month complete submersed in a spare tank with filtration. I dumped a bunch of Biological Filtration booster to remove any bacteria from the wood and scrubbed it with steel wool three to four times a week. I used a dremal tool to make the cuts on the ends which heat sealed the ends of the wood.