My new betta has been glass surfing like crazy. So, today I added even more silk plants and a green/camo style background. I sure hope this stops it. I've tried many different light setting, decor in the problem corner, black paper on the outside.. Nothing has helped.
At least now with the new plant jammed in his problem corner he literally can't get there like before.
I'll let you know if this helps. Water changes are going to be a bit more difficult now. But, if it stops his crazy glass surfing it will be worth it!