throw up

Hello. I have had a Coral Catshark for about a month now and he appeared to be fine. Eating and really active at night But over the last 24 hours there has been a small problem with the shark. It seems whenever I try to give him a vitamin he throws it up the next day. I’m not sure if a full...

I got this BTA back in August and it’s grown a bit too. Overall it’s pretty healthy. Sometimes at night after I feed it though, it will just throw up all the food completely undigested. The pic I attached is currently right now and I fed the BTA 9 hours ago. For it’s size, I would assume it...