Originally Posted by BetterBettas
I designed it too what I deemed proper size for 1 or 2 Bettas.
Just want to catch you on something minor you had mentioned just for education and clarification reasons ;)...
1 male betta to any tank under 75 gallons.
On very rare occasion I heard of multiple males being kept in a heavily plantd 75+ gallon.
multiple males can share a larger tank, 5+ gallons if properly divided.
mult. females can be kept together in a minimum of 10 gallons also if heavily planted and there are plenty of hidy spots.
So just incase you did patten it for sale eventually, keep in mind that it wouldnt be suitable for 2 bettas =P