4 Aquarium lid Hood Fish Tank top Cover Terrarium lid Plastic Grid Panel Egg Crate Grate 6 Aquarium Glass Cover Board Clip

Bettas are jumpers. Completely unpredictable. You can get a lid that will work with floating plants though, like this: Amazon.com : Weramics 4 Aquarium lid Hood Fish Tank top Cover Terrarium lid Plastic Grid Panel Egg Crate Grate 6 Aquarium Glass Cover Board Clip : Pet Supplies Or make your own out of plastic egg crate material They're open air, so no condensation