Weird behaviour from sunset wrasse

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This is crossposted from the wrasse thread

Need some advice here. The last couple days my 5-6' female Thalassoma lutescens has been acting weirdly. The first day i added it to my tank, about 6 days ago it got harassed by my T.quinquevittatum and T.nigrofasciatum and hid for most of the day in a cave. When i removed those 2 fish it came out and instantly seemed at home, it was eating well, swimming around comfortably and actively and got along with the rest of the fish aside from occasionally chasing the smaller wrasses away from the masstick i have recently been trying.
I also then removed my six bar angel which was really the last aggressive fish in the tank and everything seemed really good. I then treated the tank with prazipro as there's been a minor fluke problem in the tank that never seems to go away despite pretty much weekly prazi doses. I dose 1.5x the reccomended dose, leave it for 12-24 hours and then put my UV on, then the next day my skimmer back on. It's a risk leaving the UV off longer because my maculosus angel and declivis butterfly get a few spots at that point. I don't see any of the major symptoms like cloudy eyes, but even a couple days after the treatment my fish start flashing against rocks again. Maybe it's not flukes or the flukes are immune to prazi.

Anyway, when i dosed prazi the lutescens started hiding but came out the next morning and ate, but then hid again. But even after the UV and skimmer were put back on and the prazi should've been gone, it has been hiding most of the day and not really eating. It occasionally comes out but only when another fish enters the cave and it leaves. It'll eat a bit of mysis or whatever and either go back to hiding, or it'll swim directly in front of my powerhead for a few minutes but not around the rest of the tank. There's no bullying whatsoever aside from my sailfin occasionally chasing my declivis or between the maculosus and sailfin. This morning it was hiding in some rocks in the central part of the tank instead of the usual cave, it's head was poking out. I added some pellets and all the other fish started eating but he wouldn't budge. Physically it looks perfect, no torn fins, good colouration, bright eyes, even a little fat and it might be starting to transition since i can see a tinge of green coming through on the body.

I'm really worried since i had another male T.nigrofasciatum about a month ago. I added it to the tank and it hid for a few hours, then came out later that day to swim around and eat. Everything was going well but i didn't see it the next day. Then the day after that i found it just dead in a cave. Zero marks, zero injuries and there was no bullying at all. Just dead. And i'm really worried something like that is going to happen again.
Should i just leave it and hope it comes right?

Here's a photo of it this morning:
467481684_1160346462330254_9214885489871109642_n.jpg
 
This is crossposted from the wrasse thread

Need some advice here. The last couple days my 5-6' female Thalassoma lutescens has been acting weirdly. The first day i added it to my tank, about 6 days ago it got harassed by my T.quinquevittatum and T.nigrofasciatum and hid for most of the day in a cave. When i removed those 2 fish it came out and instantly seemed at home, it was eating well, swimming around comfortably and actively and got along with the rest of the fish aside from occasionally chasing the smaller wrasses away from the masstick i have recently been trying.
I also then removed my six bar angel which was really the last aggressive fish in the tank and everything seemed really good. I then treated the tank with prazipro as there's been a minor fluke problem in the tank that never seems to go away despite pretty much weekly prazi doses. I dose 1.5x the reccomended dose, leave it for 12-24 hours and then put my UV on, then the next day my skimmer back on. It's a risk leaving the UV off longer because my maculosus angel and declivis butterfly get a few spots at that point. I don't see any of the major symptoms like cloudy eyes, but even a couple days after the treatment my fish start flashing against rocks again. Maybe it's not flukes or the flukes are immune to prazi.

Anyway, when i dosed prazi the lutescens started hiding but came out the next morning and ate, but then hid again. But even after the UV and skimmer were put back on and the prazi should've been gone, it has been hiding most of the day and not really eating. It occasionally comes out but only when another fish enters the cave and it leaves. It'll eat a bit of mysis or whatever and either go back to hiding, or it'll swim directly in front of my powerhead for a few minutes but not around the rest of the tank. There's no bullying whatsoever aside from my sailfin occasionally chasing my declivis or between the maculosus and sailfin. This morning it was hiding in some rocks in the central part of the tank instead of the usual cave, it's head was poking out. I added some pellets and all the other fish started eating but he wouldn't budge. Physically it looks perfect, no torn fins, good colouration, bright eyes, even a little fat and it might be starting to transition since i can see a tinge of green coming through on the body.

I'm really worried since i had another male T.nigrofasciatum about a month ago. I added it to the tank and it hid for a few hours, then came out later that day to swim around and eat. Everything was going well but i didn't see it the next day. Then the day after that i found it just dead in a cave. Zero marks, zero injuries and there was no bullying at all. Just dead. And i'm really worried something like that is going to happen again.
Should i just leave it and hope it comes right?

Here's a photo of it this morning:
467481684_1160346462330254_9214885489871109642_n.jpg
Prazi takes up to two days to start working and 1.5X is overdose and may be posing an issue and can even cause a fish to have open wounds where the worms were. In essence, you want to dose at 85% of recommended and apply initial dosage known as an interval for 8 days, do a water change and do one more 8 day dose interval
Use airstone with prazi as it does reduce both oxygen and appetite. If running a skimmer, leave cup off first 24 hrs as skimmer will go nuts from the glycol solution in Prazi
 
Prazi takes up to two days to start working and 1.5X is overdose and may be posing an issue and can even cause a fish to have open wounds where the worms were. In essence, you want to dose at 85% of recommended and apply initial dosage known as an interval for 8 days, do a water change and do one more 8 day dose interval
Use airstone with prazi as it does reduce both oxygen and appetite. If running a skimmer, leave cup off first 24 hrs as skimmer will go nuts from the glycol solution in Prazi
I have done a regular dosage before for like 3 days without UV. But the same issue happened, a couple days afterwards my fish would resume the flashing.
 
I have done a regular dosage before for like 3 days without UV. But the same issue happened, a couple days afterwards my fish would resume the flashing.
You want to run for 8 day as 3 is Not enough. It takes 2 days for initial dose to begin working on issue.
 
I've heard that prazi is mostly inactive after like 2-3 days after dosing though. I think it was @Jay Hemdal that said that. I checked on the wrasse twice after i posted this and it seemed fine and was eating well still, so i don't know if there's actually a problem or if i'm just worrying.
 
I've heard that prazi is mostly inactive after like 2-3 days after dosing though. I think it was @Jay Hemdal that said that. I checked on the wrasse twice after i posted this and it seemed fine and was eating well still, so i don't know if there's actually a problem or if i'm just worrying.

Using praziquantel with wrasses is often mentioned as being an issue. I've had difficulty confirming this, as I often treat wrasses with praziquantel powder at 2.2 mg/l, and I've never seen any issues. I'm starting to think now that the issue is with Prazipro, most likely the glycol solvent. I don't use prazipro, so that could account for the different reports.

One thing for sure is to not increase the dose of prazipro. Even the Hikari web site warns against that. My recommendation is to dose it at 85% of the aquarium's rated capacity in order to offset any water displacement by the rocks and substrate.

UV light for certain breaks down chloroquine. I can't find any solid reference for if it also breaks down praziquantel, but it is best to assume that it does.
 
Using praziquantel with wrasses is often mentioned as being an issue. I've had difficulty confirming this, as I often treat wrasses with praziquantel powder at 2.2 mg/l, and I've never seen any issues. I'm starting to think now that the issue is with Prazipro, most likely the glycol solvent. I don't use prazipro, so that could account for the different reports.

One thing for sure is to not increase the dose of prazipro. Even the Hikari web site warns against that. My recommendation is to dose it at 85% of the aquarium's rated capacity in order to offset any water displacement by the rocks and substrate.

UV light for certain breaks down chloroquine. I can't find any solid reference for if it also breaks down praziquantel, but it is best to assume that it does.
So would you recommend that i use praziquantel powder in the future? Again this morning he seemed completely fine so i am starting to think it was just because of the prazipro treatment that happened like 3 days prior. My other wrasses didn't seem to mind though, so maybe Thalassoma are more sensitive? Also if i were to use praziquantel powder at 2.2mg/l, how long should i leave it before i can turn the UV back on?
 
So would you recommend that i use praziquantel powder in the future? Again this morning he seemed completely fine so i am starting to think it was just because of the prazipro treatment that happened like 3 days prior. My other wrasses didn't seem to mind though, so maybe Thalassoma are more sensitive? Also if i were to use praziquantel powder at 2.2mg/l, how long should i leave it before i can turn the UV back on?
You can use either and as jay described on powder, be precise. I utilize liquid and keep in mind it reduces appetite and oxygen slightly. The liquid contains glycol agent
 
So would you recommend that i use praziquantel powder in the future? Again this morning he seemed completely fine so i am starting to think it was just because of the prazipro treatment that happened like 3 days prior. My other wrasses didn't seem to mind though, so maybe Thalassoma are more sensitive? Also if i were to use praziquantel powder at 2.2mg/l, how long should i leave it before i can turn the UV back on?

If you aerate very well, then Prazipro will be o.k. Pure prazi powder is more difficult to source.

Prazi breaks down in less than 3 days, so you can turn the UV on after then.
 
If you aerate very well, then Prazipro will be o.k. Pure prazi powder is more difficult to source.

Prazi breaks down in less than 3 days, so you can turn the UV on after then.
I have both return nozzles at the surface and my skimmer on 1% when i dose usually
 

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