Very worried about my convict (flashing, dull, not eating)

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Natalie

Jack Dempsey
MFK Member
Aug 31, 2007
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Florida
Sorry this is going to be a long post... I just need to write down all my thoughts.

I moved a month ago, and ever since then my convict hasn't been quite right. I made sure to acclimate him slowly to the local water. His appetite hasn't been good since the move, but he tends to be sensitive that way and picky about his food. His appetite has gotten drastically worse in the last week. Yesterday I noticed him repeatedly flashing his left side onto objects in the tank, and swimming around with his fins clamped. He also would intermittently sit on the bottom of the tank and stop moving (gills, even), and look as if he fell asleep. A minute or two later he'd swim again. He had one episode of stringy white poop yesterday, but then again he hasn't eaten in days so I think that's due to an empty GI tract.

He's housed with five healthy longfin zebra danios that I got at Petco. I worry very much that they have passed something on to him, but they were healthy through their two-week quarantine and show no signs of disease. My betta (in a separate tank) got velvet two weeks ago from plants I bought at Petco, and I'm successfully treating that. I haven't shared any aquarium equipment between the two tanks, but I'm starting to wonder if something similar is occuring with my con because I now know there was velvet in the tank system at Petco.

He's in a 29g tank. Water quality has always been great. Ammonia = 0, Nitrite = 0, Nitrate = 5-10 ppm. pH is 8.0 here. I do weekly 50% water changes and treat the water with Prime. Tank temperature is steady at 80 F. I always add one rounded tablespoon of salt per 5 gallons of water in the tank.

I'm a bit confused about his symptoms, but the clamped fins and flashing lead me towards external parasites (although I can't see any on him or any of the other fish). Over the last 36 hours I've increased the salt content in the tank to 1 tablespoon per gallon, and he's tolerated that well. I also added copper sulfate (a risky decision but it would treat both ich and velvet if he had either), and I'm slowly raising the tank temperature from 80 to 85-86 F. I don't know what else to do for him... sometimes he looks ok and then his fins will clamp, he'll sit on the bottom of the tank, and he'll look as if he's going down for the count.

He's my favorite fish, my first cichlid I ever got, and I'll be devastated if I lose him. He's 4 years old.

Do you all have any suggestions for what else I could do? Thanks...
 
When I see symptoms like this, I try Prazi-Pro first since it's pretty safe and often works wonders if it is a parasite. This sounds like it might be bacterial, though. Are the danios pooping white or anything?
 
No the danios have looked perfect since I got them. Very active, voracious appetites. The con is the only affected fish in the tank.

I guess if I get praziquantal I'll need to do a 100% water change first to get rid of the copper sulfate? Or can I have both in the tank...
 
Okay, thanks.

Since he's acclimated to it, I plan to add back in the high amount of salt, too, as long as you guys think it won't do any harm.
 
Just an update... I decided to see how the copper sulfate, salt, and temperature increase would help. My convict improved almost immediately, with less flashing. He even would eat a few flakes of food, but still no pellets. But, he got worse again over the last two days. When I walked into the room yesterday I saw him flashing almost constantly, and much more violently than before. In addition, his fins were clamped again, and he looked to have increased slime coat over his sides (especially head/gill area.) I ran out and bought some Praziquantal. I put him and the danios into a bucket, did a 100% water change to get rid of the copper sulfate, vacuumed the sand substrate, and added new water, Prime, 1 tbsp/gallon salt, and the praziquantal. In all the fish went, and he immediately looked REALLY stressed: exaggerated gulping and gill movements, sitting on the bottom of the tank, very pale. He's never handled netting and bucketing well, and I think it really freaked him out. It didn't look like a reaction to the praziquantal, though, but rather stress from handling, so I turned out the light and watched him closely.

Today he looks better but still so-so. No flashing whatsoever! His fins are still clamped and he spends most of his time resting on the bottom of the tank, but he did patrol the tank a few times today which is better than he's been doing. I offered him a pellet but he wasn't interested.

I've already prepared myself for the worst. If he doesn't get better with the praziquantal then I'm going to take him to school for diagnostics.
 
Well he's not any better, so I'm taking him to school tomorrow for a full diagnostic workup. I'm interested to see what the heck he has...
 
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