dwarfgourami
Fish Connoisseur
I asked the retailer of the scooby doo gumball betta tank and this was her reply
Response from bucsgirl0128
Item: SCOOBY DOO BETTA BOWL! GREAT KID'S GIFT! UNIQUE GIFT!! (7737298716)
Bettas have lungs so they come up for air. as long as there is an half inch of space between the lid and the water level you are fine.
Gosh, she must know a lot about bettas! Lungfish, are they?