Is smaller better?

[revhtree]

Is it better to get a smaller fish (younger), than a bigger fish? Say a tang for instance. Would it be less likely to get ich, or something else growing up in your tank?

I have wondered this for a while, and just thought to myself, why wonder I got AA!!

 

[steve-s]

I really depends on the adult size of the fish and species. It does help if certain fish species are on the smaller side though. They more readily adapt to captive life and feeding habits over that of a more mature fish. It does not have any impact on wether it might have a parasite condition or not. Some fish are much more prone to catching it than others but none are immune (long term at least).

For a tang I would generally look for one that is about 1½-3" (nose to tail), has good color, no marks and not pinched in the belly. Seeing them feed before you buy is also a big plus.

Cheers
Steve