Hi Ryan,
Good choice buying CB from Roo. He is the author of those articles on the E-zine, by the way. I use setups very similar to those, mainly because I read his articles as well! They work great. I have some with hydroton and some with aquarium gravel for the first layer, and the hydroton definately works better. I am a compulsive mister, and the hydroton tends to hold the water better than the gravel. I use a different top substrate than the cocofiber sand mix that Roo discusses in his article. I moved to a mix of organic potting soil, sand, and pumice a while back. It works well for me.
A trio of brevs would be comfortable in a 20 gallon and do very well in a 30 gallon. Space would be a bit tight in a 10 gallon. In my 65 gallon tank, I have 5 small plants. A couple of them were in 4 inch pots, one was in a 6 inch pot, and the other two were in smaller pots when I bought them. For a 30 gallon tank, you would probably do well with one larger plant and a couple smaller plants. I use ficus, staghorns, mother in law tongue, pygmy bamboo (the real stuff), a few others. I have never used a pothos in one of mine, but I am guessing it would do well. There is a great plant list at blue beast.. you might want to take it with you to the store and look up some of the names on it. Basically, you want something fluffy and with lots of branches for climbing and good cover. The staghorn looks great in the tank, and the chameleons seem to like it, but not as much as the ficus.
Heika
