sick betta

Hi, I set up a small aquarium for a black orchid betta male about a week or two ago, and I’ve noticed he has these little red looking spots on his head that have spread. They almost look like ulcers or like his scales are missing? He is overall pretty active and is eating fine. The tank is 3.5...

Hello, this is (unfortunately) my first post because I don't know where else to go. My poor betta Charlie got sick a long while ago, I would say about a month ago. At first I thought he was just constipated due to being overfed pellet food. He was still able to swim but was staying on his side...

Man, this betta is really confusing me. I cannot seem to figure out what is wrong with him. Right before Thanksgiving, I noticed his belly was a little swollen and he had a white patch on his dorsal fin. I did a lot of research and figured that it was some sort of fin rot. I did some aquarium...