Lol some bettas are okay with other critters, even eggs. But I wouldn't trust any of mine- they stole food from my cories (when I had them) even though bettas are supposed to not really like algae tabs! They also go after fingers, arms and anything on the outside of the tank, even water dripping down the side haha.
Yes he is gorgeous :) I haven't had a CT male, but I love their fins, theres just something about that spiky look!!
Lol I have to stop myself from going over by the fish whenever I go in for dog or cat food! And it also helps when I don't have cash with me haha. And that's what I like about the homemade dividers, you can make them fit so much better than the store bought ones. But, hey, to each their own :) I had my 10 gallon divided 3 ways and all my babies were fine, but I also seem to have good luck and pick out fish that aren't too stressed out by their neighbors and tend to ignore them.
I bought a tube plant once and it turned out to be a peace lily...definitely not an aquatic plant! I think the Tropica ferns are fine though :3 and bamboo is pretty cool- the only thing is to make sure there are no leaves below the waterline. They rot and release a toxin into the water (at least I'm pretty sure that's what happens). So as long as you keep all the leaves above the water and in the air it should be fine!!