Would a 60 gallon be an okay permanent home? I know 75 gallon is the most ideal.. but since the only fish I'll have in the tank is my fh, would a 60 gal be okay?
Yes, it should work. Just keep the FH in there and that's it. But like big_one said tank dimensions do matter. Tall tanks are not as good as long ones.
I'm not sure on the length.. but the width and height is the same as a 75 gallon. I think the width is 18 inches and I'm not sure on the height.. The length would be a little shorter and thats about it.
Ok.... a 60g breeder is usually 36x18x24. Three feet of swimming space is not ideal for an adult male Flowerhorn, but it's doable. I'd still aim for a larger "permanent" home, though. Could you do a partial trade on Craigslist, get rid of the 60g and get a 75-90g? For some reason, a lot of people in my area have large tanks that they're trying to trade on CL for smaller ones. Might be an option...