Betta Close Up, originally uploaded by sammorrowphotography. Q: CL wrote, I have a Betta, my first fish. He is in a three gallon tank that has a filter and light. It’s the Eclipse System Tank and has a replaceable carbon filter. I feed him freeze dried blood worms. I see that after looking at your blog that is not good and I am changing that to frozen. He is a beautiful … [Read more...] about Betta Changes Color