bettasick

Hi, so I'm new to bettas/fish keeping in general but I have 3 bettas all in a 5.5 gallon and one of the tanks was a different 5.5 and came with a stronger filter suitable for 10G tanks but my fish doesn't like it so I ended up buying a 3G tank filter and he likes it much better. Just now I...

Hi, i need help with my betta. I hve had him for almost a year now but recently i noticed a strange patch on his head, it wasn't white, more of a lighter shade of blue. Anyway the patch became bigger and started to change colour so i isolated him in a baby biorb (15ltr) and went to the lfs where...