I myself introduced a fish yesterday that I thought for sure would thrive. The tank had been "set-up" for two days. I used conditioner and cycle liquid (try as I might, I just didn't understand the cycle process, how long it takes, etc. I admit to cutting corners with the testing kit, and I was surely impatient). I acclimated him very slowly. I let his container float for 30 minutes before doing water exchanges (pouring some of his container water out and replacing it with tank water). I did this every ten minutes for an hour. He seemed to be doing well when I finally got him into the tank. I waited another 20 minutes to make sure he was okay before going out. The heater was set to a nice thermometer verified 79 degrees and his was curious and active.
Yesterday, I got back 5 hours later, and I could immediately tell that something wasn't right. Casper was lethargic, lost the life in his eyes, and wasn't swimming well
. He's a HM, and his dorsal fin was limp, and he kinda hung his body down diagonally (think like a 25-30 degree angle). He could swim well enough, I guess. Definitely not on the brink of death... It seemed more like he was weak? Exhausted? In shock? My filter, even on its lowest flow setting, seemed to mildly pin him at the bottom of the tank (which is a 4.65 gallon tank). He would go back and forth between floating/swimming in a corner at the top of the tank, or laying with a slight wobble in the corner with the heater at the bottom of the tank. I turned off the filter to make getting air easier on him.
New tank syndrome?I rushed to Petsmart (the closest place with a decent selection). I tried to find the most knowledgeable employee I could, and I got Prime and Bacterial Supplement. I suspect that the original cycle liquid I got was dead.
So this morning, he was perkier but still a far cry from the energetic and interactive fish he was in the cold and stale cup
.... The water was somewhat milky/cloudy, which I learned was from the bacterial bloom. I read that it this isn't unsafe, but read that the bacteria depletes DO. So, I did a 25% water change to keep any toxic concentrations down (I can't imagine that they had accumulated to dangerous levels in only 5 hours) and raise the DO.
Casper lives at my bf's, so I won't see him until tomorrow night and my bf won't be home from work until about 11 pm tonight (CT). In the event that Casper isn't dead, and he is continuing to improve, should I turn the filter back on to help with the oxygen levels in the tank? Yes, I'll get a test kit for when I go back over tomorrow.
Oh and after numerous attempts, he hasn't been remotely interested in food since being introduced to the tank. I do take uneaten food out.