Yeah im sticking with angels and community tetras and Cory’s. I may add a bristle nose pleco or my LFS has a nice 6” green phantom pleco, now that I have more wood. The Otto’s have been eating nothing except algae and the wood and have been thriving. I’d like to add pieces of cucumber and see if they go for that.Nice tank. I personally wouldn’t go with severum as a centerpiece fish not due to its size but because of its herbaceous nature. Generally severums in planted tanks is not a good idea. They may also eat your small dither fish as they grow larger. If you want a better centerpiece fish I would recommend maybe some dwarf cichlids. Apistogramma and rams should work well and have plenty of color and personality. Another suggestion is a red flag tail prochilodus. This fish might be pushing it with the tank size but they are slow growing and I’ve seen ones max out anywhere from 12-16 inch. Peaceful and vibrant and while may munch on Plants generally been pretty good in my planted tanks. Plus one of the best algae eaters! Hope this helps. I’m usually one to slightly overstock my tanks but with the right maintenance and care they do fine