A few days ago I bought a 55 gallon tank from a guy on craigslist as a bigger tank for my two blood parrots. The guy failed to mention that the tank came with fish. I had no where to put them and the blood parrots needed to be moved so now they are all in the tank together. There is no fighting but I am not familiar with some of these fish. Aside from my two blood parrots the surprise fish include: 1 Leopard Ctenopoma (about 4"), 1 Synodontis Eupterus (about 6-7"), 1 common pleco (about 6-7"), And 4 medium sized giant danios. Are any of these fish ok to stay living in the 55g with my bps? If I must rehome all the surprise fish how many Blood Parrots can live comfortably in a 55g? Opinions appreciated. 