Who Gives A Fish Forums

My betta keeps jumping out of the tank. I've got a lid, but it's not super secure. Any tips to keep them from leaping? Tank's a 10 gallon, planted, with a sponge filter. Water params are good, 0 ammonia, 0 nitrite, 10 nitrate.

You might wanna check the gaps around the lid. Bettas are sneaky and can squeeze through tiny spaces. I use a glass lid with a tight fit, no issues so far.

Yeah, gaps are a big deal. Also, lower the water level a bit. Gives 'em less room to build up speed for a jump. Worked for my dude.

If the lid's not cutting it, try adding some floating plants. They kinda block the surface, making it harder for the fish to jump. Plus, it looks nice.

Floating plants are a solid idea. I'd also recommend checking the water flow. High flow can stress them out, making them more likely to jump. Sponge filters are usually gentle, but double-check.

fennec wrote: ↑Thu Jun 19, 2025 6:20 pm You might wanna check the gaps around the lid. Bettas are sneaky and can squeeze through tiny spaces. I use a glass lid with a tight fit, no issues so far.

Glass lids are the way to go. I've had zero escapes since switching. Just make sure the hinges are sturdy.

Yo, I had the same prob. Got a mesh lid off Amazon, cut it to size. Cheap fix, and it's been holding up for months. No more jumpers.

Mesh lids are great for airflow too. Just make sure the mesh is fine enough to stop the fish. Some folks use window screen material, works like a charm.

I've heard some bettas jump 'cause they're bored. Maybe add more plants or decor to keep 'em entertained? Just a thought.

Boredom's a factor for sure. Mine stopped jumping when I added a few shrimp buddies. Not saying it'll work for everyone, but worth a shot.