we had a 20g set up for our sevrum fry-which didn't work out SOOOOOOOOOO now we have this tank set up and ready to go and ken wants some angels (he remembers his grandma had them when he was growing up) and i was wondering if this tank would be too small for 2 angels-from what i researched it said approx 5gal per adult angel but that sounded too cramped.