Experts please help with a sick firefish in my Seahorse tank

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WallyWest1942

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Jun 25, 2021
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Good afternoon and thank you for trying to help... I have a tank with 4 happy seahorses in it. There's a purple firefish in the tank that loves to eat whatever the seahorses miss. Anyways he rubs the front of his body against the substrate constantly throughout the day so I though flukes or some type of parasite. I got some prazipro and dosed the whole tank since there's no possible way to catch this firefish. Believe me I've tried everything possible. He's just too fast and has too many places to dart. I dosed the tank and followed the directions closely. The directions say to replace 75% of the water 7 days in and redose. I just redosed which probably brought the PPM of the prazipro very high. I let it go another 5 days with the two doses so now we were at 13 days. I dosed one more time, and this is when I put two and two together that I had likely raised the level of prazipro to a extremely high level since I didn't do the water change. So on the 15th day I turned the skimmer and carbon filters back on because the seahorses were hardly eating and not active any longer. So the prazipro was finally getting to them. BTW I only ran the biological filter during the 15 days. Another side note, there's 4 pistol shrimp living in the tank and 3 peppermint shrimp. Part of the clean up crew if you will. Interestingly the pistol shrimp and seahorses interact all the time. I've watched closely and the pistol shrimp will not disturb the seahorses even if the seahorses scares it when going for food. I didn't want to catch any heat for keeping them together. Also have a talespot blenny and Rainford's goby to clean up algae and food. Seahorses run the tank though. So long story short, I though I had treated the firefish with the 15 days of prazipro. Unfortunately he's still rubbing the front of his body like gills and belly against the sand. So clearly has something going on. Please help. What should I do next... I'm afraid he has parasites still and the last thing I want is them to spread to the other fish or worse the seahorses. The seahorses and other fish do occasionally eat pieces of there dinner that have fallen on the substrate where the firefish has likely poo'd. It's my understanding that is how most parasites pass to new hosts. And lastly I really really don't want to put the seahorses back thru 2 weeks of treatment again. They lost they're appetite and would hardly move around after I would dose the tank. Any help would be greatly appreciated. I'm running out of options and don't understand how the parasite survived those 15 days. Or am I just completely off and maybe he doesn't have a parasite..... Truly appreciate you reading my post and thanks in advance for the help!
 

Lalo J.

AC Members
Mar 8, 2020
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I don't know why I didn't see this thread before, sorry for the late reply, how's everything going?
 

WallyWest1942

Registered Member
Jun 25, 2021
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Actually really well. The firefish is no longer rubbing on the sand. So the only explanation is the flukes must of died when I treated the tank with the prazipro, and their dead bodies probably continued to bother the firefish for 2 to 3 weeks until it passed thru his body. H
 

Lalo J.

AC Members
Mar 8, 2020
598
434
72
31
México
Actually really well. The firefish is no longer rubbing on the sand. So the only explanation is the flukes must of died when I treated the tank with the prazipro, and their dead bodies probably continued to bother the firefish for 2 to 3 weeks until it passed thru his body. H
Generally the fish begin to rub themselves when they start with signs of Cryptocarion, so I would bet more for that to something else, Prazi is in charge of eliminating internal parasites, I'm sure that your fish did not develop Cryptocarion completely thanks to a strong immune system, When this happens most of the time the fish outgrow it after a few weeks, it's good to know that all is well.
 
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