steve-s
Well-known member
There's actually a chance they won't. If both are relatively the same size, they will co-habitate just fine. Regal tangs actually do fine together given there's enough space and/or the proper addition techniques are used.
The issue with the tank size is not that they may or may not fight but rather that their health will be severely put at risk. Both will begin to reach a size unsuitable for a 55 gal in less than 6 months. The fish will begin stunting which will increase stress, cause skelatal deformations, MHLLE and greatly reduce longevity of an otherwise long lived fish. FWIW, the fish do not actually stop growing, their growth rate just slows to such a rate it becomes almost unnoticable. The damage is still very real.
Cheers
Steve
The issue with the tank size is not that they may or may not fight but rather that their health will be severely put at risk. Both will begin to reach a size unsuitable for a 55 gal in less than 6 months. The fish will begin stunting which will increase stress, cause skelatal deformations, MHLLE and greatly reduce longevity of an otherwise long lived fish. FWIW, the fish do not actually stop growing, their growth rate just slows to such a rate it becomes almost unnoticable. The damage is still very real.
Cheers
Steve