Look at a 125.
Pretty good footprint and shouldn't break the bank
(Smaller tangs only though. Really need an 8' tank for most tangs. So a 240 8x2x2')
that's a great size. Just be sure the fish you want will fit a tank of that size (both quantity of fish and size of each fish) once they are full grown.
Here is a list of fish with a recommended 125g or smaller size.
http://www.liveaquaria.com/product/...15+43&r=3129&s=ts&start=1&page_num=1&count=24
Everyone's tastes are different so your best bet is to look at live aquaria and put a list together of fishes that you would like. The following may help revise your fish list.
Do you want Coral, some fish will eat coral
Fish compatibility, some fish do not play well with others.
monetary, space, weight limits These may limit your tank size options.
Ok, Thanks for your help.There is not any rule like so many inches per gallon. It depends on the fishes.
Some fish are territorial and do not like to share their space.
Some like to eat their tank mates.
Some are just very aggressive and will bully everyone.
Some are very active others not so much.
These are just a few things to consider for stocking other than how big do they get or how many can I get. Stocking is an art as much as it is about the above mentioned factors.