Thanks
JK47
OP, if I were you, I would keep an eye on Craigslist for a used 75, 90 or 120. The 120 will be 2ft wide by 4ft long, so if you’re tank will only be 2ft wide, then you’ll want to avoid this one. Is your tank 2 or 3ft wide?
Anyway, definitely don’t go with a 40 breeder, you will regret it greatly. Like I said, I have a 55 on my 220 and regret that I didn’t get at least a 75. I would have still preferred to have gone with a 90 for my 220.
In your case, I think 75 should be the minimum. However, 90 will be much better, and better still would be a 120, if it will fit.