My betta is quite the bubble nester.
I have him in temporary housing. He was in a planted 5 gallon Fluval Spec, but when I added a couple pygmy cory, he had murder on his mind - so he's in a 3 gallon temp tank until I can get a new 15 gallon cycled for the corys and then will add some other small fish, and put the betta back into the 5 gallon.
His temporary tank has a heater, but no filter, and I've been 100% changing it every other day.
I no more than change it and he's building a new nest. The things are kind of yucky to deal with... I try to get it all cleaned out, but it's kind of -- I don't know - slimy? to clean....
He only has a few pebbles in the bottom holding down a fake plant, but man, he wastes no time making a nest 4-5 inches across.
He tried to build nests in the 5 gallon, but with the filter, they were much smaller. I was able to scoop them out with the little cup the betta came in.
Any suggestions on cleaning up after them? Do I even need to worry about the nests other than draining tank, washing out, and refilling?