swimming vertically

Afternoon all, As of this morning one of my guppies in the 87l tank has started swimming almost vertically, tail down, mostly in the corner of the tank but sometimes out in the middle. He seems capable of swimming normally. If one of the other fish comes over and gives him a nudge, he'll set...

Hi all, I have a query about my new Platy. Somehow, he managed to get into the filter. Cue major panic trying to find him. As we were taking out the filter sponges as a last resort that's where we find him. My partner said when she found him he kinda popped out and there was a cracking sound...