02-04-2014, 12:24 AM
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Bit of a problem with the cores. Not something I'm familiar with. They're all still alive and looking good. I have a school of 13 now, they're eating fine and being active, though a few of the smallest still seem a bit tired from shipping. Three of the fish from the original shipment are getting a bit fat. They are sluggish, and seem to have trouble orienting themselves. Their buoyancy isn't quite right. They have good energy and are still swimming, they just can't do it very well. When they sit on the sand they're bellies stick out so far they kind of rock. It doesn't seem like dropsy, because it has come on really slowly and the fish don't have that pinecone look. Some of the fish are also flashing. I thought it was just playful at first but the frequency is increasing. No idea what this is.
I thought it might be a swim bladder issue from adapting to a higher CO2 environment, but their respiration seems very relaxed and they don't seem agitated apart from the flashing.
Currently I'm thinking it may be constipation from the dietary change. I don't know what the supplier was feeding them. I'm feeding them hikari sinking tablets and ocean nutrition community formula flakes (they eat the flakes that sink).
Second picture is of the most affected fish. First picture, the big cory who's tail is pointing to the left of the picture is starting to swell a bit.
Suggestions? I really don't have much experience with sick fish, but I feel like if this is something serious I've recognized it pretty early, just need to know what to do.