Okay so if it is a tank problem I have most likely experienced it at some point but this is something new to me....and I don't know what it is or even most of what it is not.....so here goes....
Last friday I noticed one of my bala sharks (named Stumpy- due to missing fin) looked like he had Ick....you know those lovely little white dots. They were mostly on his tail fin. The other 2 balas looked fine. By Sat. the other 2 had some spots and poor stumpy was covered from head to tail. I upped the temp as much as I could *have had to lower it since due to respiratory problems with sharks* and I began adding salt. By Sunday they all had stopped eating and it looks almost like they have slime coat disease *they appeared very dull grey and like they had too much slime coat going on. So I added a half a dose of some malachite green to treat for fungal infection and to treat the Ick as i felt they needed something a little faster than a salt treatment.
Mon. (yesterday) they looked really bad, they kinda look like we do when we peal from a bad sunburn and the white spot looks more like white lines (maybe 2-3mm in length) maybe it is just many spots clustered together, don't really know. They still have not eaten and normally you can't give them enough food. So, they are swimming around, Stumpies eyes have clouded up and they all appear to be sloughing off skin or slime coat, and they are NOT that shiney silver color, I can see some traces of red just below the skin which is alarming to say the least
. At this point I did a 50% water change (aprox. 60 gallons) and added in some more salt. I have increased the surface aggitation for oxygenation and I am not turning on the lights.
I tried to get pics of them but they are naturally fast and twitchy fish so a pic is all but impossible with my cheap cell phone camera. None of the other fish in my tank are affected at all * full grown Oscar, 6 rosie red feeders, one comet, one black ghost and a larger common plec.* they are all fine-so I want to say it is not Ick but something much more nasty and VERY fast moving but not terribly infectious (unless you are a bala shark or sensitive fish species) and it has taken my sharks down in about 3 days from the time I saw the first spot.
the comet and the rosies are chasing the sharks around and eating the stuff that is sloughing off....I came close to comet abuse for this reason yesterday...I don't know what to do as I have no idea what is wrong. My water is fine, or was before the malachite green anyway. My nitrAtes were a tad high about 2 weeks ago but a series of water changes took care of that.
I do not want to lose my balas but I fear that is going to happen so if anyone has some incite feel free to share it with me....in the mean time I am going to look at some sick fish pics in hopes of finding something that resembles the funk in my tank.
fern
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My bala sharks are all messed up.... 
