Originally Posted by Bluewind
I estimated it with a bowl of 3in cubed. At 3in deep with the bowl about 3in x 3in x 3in, it would be 2.5gal. The minimum gallon size for Bettas. In all honesty, I would make the bowl slighy wider to give a better space to turn and more room to work with when cleaning, but that's just me.
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Exactly. I am going to make the bowl bigger for the main feeding, breathing area. Also to facilitate easier cleaning, decorating ect.
The bowl on the new tank will be at least double the size of current.