Blow up pools would probably get popped by fish spines, you could try this though: http://www.target.com/Intex-Metal-F...target&field-browse=1038604&rh=k:intex&page=1- It's 1100 gals, they make metal frame pools up to 32'x16'x52" and their liners are very dependable.
I've been using the 1700 gal pool for about 1.5 years and its working great, you'll have to pick up different filtration and heaters but it is worth the investment if you don't want to build a tank.
I've been using the 1700 gal pool for about 1.5 years and its working great, you'll have to pick up different filtration and heaters but it is worth the investment if you don't want to build a tank.