The Sohal & purple & Hippo will probably fight. Purples are aggressive. Hippos & Sohals share similar body shapes. In that size tank, is there any way you can build a separation chamber? I had one made from eggcrate, with edges zapstrapped. I would put in a fish for 5-7 days and then release it. The other fish would get all aggitated for the first few days but eventually they get used to the sight, smell, taste of the new fish & calm down. Aggression was much reduced afterwards when I let the new fish out. Didn't even have to rearrange my rockwork or anything.
Also, tangs get more aggressive if they feel that their foodsupply is threatened (from Coral magazine & my own observations) so I fed a lot & made sure they didn't feel like the new fish would cause the old ones to go hungry.
JMOE,
Anthony
|