One of my very first bettas jumped out of his home. I had them all in half-gallon things, which you can get at Walmart, but now look spiffier than the ones I had. I never had the lids completely on. I didn't think just 2 tiny holes would give them enough oxygen. I did waterchanges the one day, did chores late afternoon-early evening *I help dad milk cows*, and came home. After my shower I went up to feed them all *I had 4 at the time* and noticed Maroon wasn't in his home. I looked everywhere, in my dresser drawers...etc. finally finding him in my godawful shag carpet *not of my choice...was there before my mum and I came to live there with dad *aka step-dad and step-brothers* it was a dark burnt red, burnt orange, icky green, brown, black, yellow, carpet. So it was hard to find Maroon as he was all dried up.
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After that, the lids stayed on completely.
I'll be honest, when I first got Fatima, I didn't have her bowl covered....but she's in a 2.5 gal minibow, so she's covered now...
While searching Walmart one time, you know the plastic trays I think you set plants on, etc. if you do the water lilly thing or whatever plant you use....I think this was the tray, I'm not sure...it was a clear plastic tray, had no holes tho, but if fit PERFECTLY into a 1 gal bowl
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When my bf's sister wanted to get me a fish, I asked her to pick me up one of those. Bill poked holes in it from the 'inside out' so there would be no sharp plastic 'pokey parts' and I have to say, tho she was only in the bowl less than a week, it worked well. You could probably put in a fancy rock or something on top of the 'lid' to make it more stable. It looked alright tho, didn't really notice anything was there, and it was a perfect fit.
It was next to the fish bowls in the fish section at Walmart, on the bottom row next to them.