Large aggressive tank options?
First off, this is for future use, and at this point I do not have any plans on switching fish yet. I am merely researching.
Also, "Large aggressive tank" means the size of the tank, not the fish. Exceptions could be made, but not leaning that way.
1. FW puffer. Although I would like to have other fish in the tank. I do know most aren't compatible. I have heard some people have luck, some don't. Will having larger fish (ie - arrawana, etc) help? I had a Ceylone, a GSP, and many community fish together before.
2. If puffer is a no go, what other med/large fish can I get? I am looking for an aggressive "community" tank. Maybe some Leaf fish, datnoids, etc. I am really trying to steer clear of a species tank, although depending on the fish, will consider.
3. Plants. I would most likely want to make a DIY background, but also would live plants. Of course what plants would depend on whose in the tank.
Anything else I need to look at? Substrate would stay the same, and of cousre the hardscape depends on the fish too.