tanks for tangs

[trekel]

where do they come up with these tanks size and gallons . is there actually research on this subject?

 

[petoonia]

I think alot of it has to do with how active, and how large the fish will be.

 

[jmaneyapanda]

it is an estimation through experinece and observation of natural behavior. Tanks are genrally very active swimmers with high metabolisms, so smaller tank cannot and do not offer the proper swimming ability to keep them healthy.

 

[snorvich]

There are a combination of factors. Tangs eat a LOT and poop a LOT so small volumes of water are undesirable and even larger bodies of water should have a skimmer that OVER skims. Also, tangs are very active and need lateral swimming space (gallonage is a poor estimate of a tanks "tangability") because their natural range is so large (perhaps because of competition for food?). In any case the figures given are estimations and tend to be LOWER than optimal tank size.