Silver/Bala shark mouth stuck open
So tonight I noticed my silver shark , Bruce (as named by my daughter) was looking a bit weird.
Upon closer inspection, it seems his mouth his stuck open, as if he was straining for food.
I hoped it would fix itself, as it wasn't like this this afternoon when I popped a bloodworm cube into the tank.
So I have come back to the tank now to check him out and he is barely moving. Just floating in the same spot. I guided him into the floating hatchery I have as one of my gouramis was picking at his tail.
I can't see anything stuck in his mouth or gils. Everything looks good apart from his mouth. I will try and include a picture.
I'm concerned that he will not be able to eat.
Has anyone seen this or had this happen to their fish before? Anything I can do or chance it will heal on it's own?
2 dwarf gouramis
2 corydoras sterbai
11 cardinal tetras
4 serpae tetras
Fed 6 days out of 7: flake food, bloodworm and sinking pellets.