Ok so im new to keeping apistos, ive done as much research as humanly possible, but theres one question i still have, i know you cant keep different species (ie:borelli, cacatuoides, etc) but can i keep 2 different color varieties of agassizii, like fire reds and double reds, i have a 29 gallon tank to keep them in, also what can you recomend for dither fish? Thanks for your time!