Good choice! Your fish will love the extra depth of the 210.
For only $250 more I’d do the 240So I have 2 Oscar’s and 2 bichirs. Should I upgrade them to a 150 gallon (72”x 18” x 29”) for about $850 usd or go with the 210 (72”x24”x29”) for $1100 usd
And drum setsYou’ll love the 210. So much more room for activities!!