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My Solon fairy wrasse just passed away today after having some symptoms for a few weeks following a tank upgrade. I want to see what people's thoughts are so I can decide what to do with the rest of the fish in my display.
Symptoms: white marks along sides of his body prior to tank move, after tank move the wrasse was hiding but still eating normally for 2 weeks, then appetite decreased over a few days. We dosed prazi (fluke solve as we are in the UK) followed instructions of 1g per 250L, our system is 615L but we dosed only for 525L to account for water displacement due to rock and equipment and because I didn't want to overdose as I believe wrasses can be sensitive. Wrasse did not eat after the prazi and 48 hours later appeared to be breathing heavier and through mouth so we ran carbon and put the collection cup back on the skimmer. He also had stringy white poop at this time. 72 hours after the prazi dose we pulled him from the display to a hospital tank with airstones, heater, and salinity matched to DT tank. He seemed the same for a few hours then appeared moribund and died about 36 hours later.
History: the wrasse was showing a few white marks on his sides for around a month prior to the tank move. They seemed larger than ich and weren't moving or getting worse and he was eating well and acting normally so we left him assuming they were just scrapes or lympho.
Tank move: we upgraded from a reefsys 326L tank to a custom tank to accommodate our growing foxface. New tank was to go in place of old so we switched tanks on the same day. Fish were caught and placed in an 120L black tub of new saltwater matching the display salinity and temp with a wavemaker and heater and some pvc. They were in the tub for 4-5 hours while switching tank. Old rock was kept wet and then put in the new display immediately along with additional dry marco rock and live ocean rock (we were told this was kept in a fishless system for a couple of months but now are wondering if this has brought parasites into the tank). Sand was not reused, we used new dry and live sand.
The only other tank inhabitant showing any real symptoms is one of our chalk bass, who jumped from a container during the move and has developed a bad case of popeye in one eye. It was not cloudy and he was eating and swimming normally so we left him but he stopped eating and we caught him darting across the tank with his mouth open shaking his head, so dosed the prazi. His eye now appears to have multiple small air bubbles rather than only one large one, we have not seen him shaking his head since the prazi dose. We are currently trying to catch him to treat in case of infection. He has also shown some stringy white poop but now wondering if this is just due to not eating.
All other fish seem fine albeit a bit stressed from us constantly trying to catch the bass. I did notice a couple of spots on our magnificent foxface but unsure what they are.
Checked the new tank for ammonia daily after the upgrade for a couple of weeks using a salifert test kit and it read 0 consistently. Temp is 25°C, salinity 1.026.
Tank inhabitants: 2 ocellaris clownfish, starry blenny, firefish, Solon fairy wrasse (dead), magnificent foxface (glass surfing and a couple of spots), 2 chalk bass (one with popeye not eating), fang blenny, 2 fire shrimp, tuxedo urchin, snails and hermit crabs.
All fish had been quarantined in 30 days copper and 2 prazi doses before moving to DT tank. Wrasse was added last June. Latest fish were added in October. We hold all corals and inverts in a fishless system for 60 days before introducing to display. Not ruling out cross contamination from poor sterilisation as we do use same hydrometer for example between both systems. Also while we were told the live rock we added had been kept in a fishless system for a couple of months we are now obviously regretting not qting this ourselves.
Attached are photos of the wrasse in the new tank that I caught when he was out still eating. Also two photos showing the progression of the chalk basses eye. I will put a post mortem pic of the wrasse in a comment below in case that is of any help.

Symptoms: white marks along sides of his body prior to tank move, after tank move the wrasse was hiding but still eating normally for 2 weeks, then appetite decreased over a few days. We dosed prazi (fluke solve as we are in the UK) followed instructions of 1g per 250L, our system is 615L but we dosed only for 525L to account for water displacement due to rock and equipment and because I didn't want to overdose as I believe wrasses can be sensitive. Wrasse did not eat after the prazi and 48 hours later appeared to be breathing heavier and through mouth so we ran carbon and put the collection cup back on the skimmer. He also had stringy white poop at this time. 72 hours after the prazi dose we pulled him from the display to a hospital tank with airstones, heater, and salinity matched to DT tank. He seemed the same for a few hours then appeared moribund and died about 36 hours later.
History: the wrasse was showing a few white marks on his sides for around a month prior to the tank move. They seemed larger than ich and weren't moving or getting worse and he was eating well and acting normally so we left him assuming they were just scrapes or lympho.
Tank move: we upgraded from a reefsys 326L tank to a custom tank to accommodate our growing foxface. New tank was to go in place of old so we switched tanks on the same day. Fish were caught and placed in an 120L black tub of new saltwater matching the display salinity and temp with a wavemaker and heater and some pvc. They were in the tub for 4-5 hours while switching tank. Old rock was kept wet and then put in the new display immediately along with additional dry marco rock and live ocean rock (we were told this was kept in a fishless system for a couple of months but now are wondering if this has brought parasites into the tank). Sand was not reused, we used new dry and live sand.
The only other tank inhabitant showing any real symptoms is one of our chalk bass, who jumped from a container during the move and has developed a bad case of popeye in one eye. It was not cloudy and he was eating and swimming normally so we left him but he stopped eating and we caught him darting across the tank with his mouth open shaking his head, so dosed the prazi. His eye now appears to have multiple small air bubbles rather than only one large one, we have not seen him shaking his head since the prazi dose. We are currently trying to catch him to treat in case of infection. He has also shown some stringy white poop but now wondering if this is just due to not eating.
All other fish seem fine albeit a bit stressed from us constantly trying to catch the bass. I did notice a couple of spots on our magnificent foxface but unsure what they are.
Checked the new tank for ammonia daily after the upgrade for a couple of weeks using a salifert test kit and it read 0 consistently. Temp is 25°C, salinity 1.026.
Tank inhabitants: 2 ocellaris clownfish, starry blenny, firefish, Solon fairy wrasse (dead), magnificent foxface (glass surfing and a couple of spots), 2 chalk bass (one with popeye not eating), fang blenny, 2 fire shrimp, tuxedo urchin, snails and hermit crabs.
All fish had been quarantined in 30 days copper and 2 prazi doses before moving to DT tank. Wrasse was added last June. Latest fish were added in October. We hold all corals and inverts in a fishless system for 60 days before introducing to display. Not ruling out cross contamination from poor sterilisation as we do use same hydrometer for example between both systems. Also while we were told the live rock we added had been kept in a fishless system for a couple of months we are now obviously regretting not qting this ourselves.
Attached are photos of the wrasse in the new tank that I caught when he was out still eating. Also two photos showing the progression of the chalk basses eye. I will put a post mortem pic of the wrasse in a comment below in case that is of any help.

