I brought home a new betta today from petco....he's my first rescue betta (and before people jump all over me, yes, he is an actual rescue). I posted some pictures of his fins so you could all see his fin issues....looks kinda like fin rot. He is also having some major problems swimming....like when he tries he just kind of flails around and doesn't accomplish much. He's pretty much been spending all of his time floating at the top of the water. His tanks is 2.5 gallons with a heater. All I've done so far is put aquarium salt in his water...if anyone has anymore suggestions to help him that would be great!