If you have to ask if he's a midas then he's a midevil. Still a nice fish though.
Your problem is you have too many big fish in a 125. If you get rid of him the next dominant amphilophus will just take his place & the cycle will start all over. 4 midas/red devils/midevils in a single 125 will not work especially if you have more than 1 male. You will be lucky to get 2 that will live together decent. 1 black belt, 1 midevil, and maybe some convicts (target fish) "might" work. These are just the wrong fish for a community like you have.
The oscar, slow growing festae, & both vieja's will come out on the short end of the stick in a disagreement. You can thin out the tank now on your terms or the devils will thin it out as they see fit. Sucks I know, but at least you got a warning instead of waking up to a tank full of murdered fish. Try to find 2 bigger fish that you like & if their aggressive (don't do 2 males) then try some smaller target fish (like cons) to prevent singled out bullying from the more dominant fish. I would also recommend some decor that will break up the aggressor's line of sight & to divide up territories. This still may not work though.
Your problem is you have too many big fish in a 125. If you get rid of him the next dominant amphilophus will just take his place & the cycle will start all over. 4 midas/red devils/midevils in a single 125 will not work especially if you have more than 1 male. You will be lucky to get 2 that will live together decent. 1 black belt, 1 midevil, and maybe some convicts (target fish) "might" work. These are just the wrong fish for a community like you have.
The oscar, slow growing festae, & both vieja's will come out on the short end of the stick in a disagreement. You can thin out the tank now on your terms or the devils will thin it out as they see fit. Sucks I know, but at least you got a warning instead of waking up to a tank full of murdered fish. Try to find 2 bigger fish that you like & if their aggressive (don't do 2 males) then try some smaller target fish (like cons) to prevent singled out bullying from the more dominant fish. I would also recommend some decor that will break up the aggressor's line of sight & to divide up territories. This still may not work though.
