PraziPro in the DT or wait and see

reefinatl

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Background information:
Purchased two clowns, local breeder as the first two fish.
Next fish were 2 YWG and Azure Damsel drop ship from ORA
The above had no QT.

Purchase a Tomini, yellowtail damsel, and lemon meringue wrasse (H. leucoxanthus) from LFS

Those go through saftey stop (formalyn & methelyne blue) followed by 72 hr TTM. I intended to do two rounds of API General Cure but dropped the ball on the timing and everyone looked healthy except a bacterial issue on the damsel's mouth. Well I rolled the dice since this was the one and only batch of fish that were going to be wild caught and store bought. I knew I was free and clear of ich, velvet, and no signs of internal parasites. Sure enough within a couple of days the Lemon Meringue Wrasse starts yawning (H. leucoxanthus). No other symptoms and he's turning into a bright male, eats like a pig and fights like hell with his reflection. Chalk it up/put my head in the sand, and call it aggression display.

Well I added a biota yellow tang, shipped direct from them, which I intend to be the last fish in this 90g. All is well for about 3 weeks. Today I start noticing it "scratching" occasionally on the rocks. Zero other symptoms. No fish are lethargic, no spots, no discoloration, strong appetites among all the fish.

Yawning of the wrasse, and scratching of the YT seem indicitive of flukes to me. The wrasse is just a total fatty and seems healthy enough and big enough I'm not very worried about it in the immediate since. The YT is a tiny little thing and while right now seems okay, we know how bad things can happen fast with small fish and tangs are delicate on good days.

My main concern is nuking microfauna. The tank is loaded with bristleworms and I'm a bit worried about ammonia from die off. Also have a few turkey wing clams. Not particularly attached to them but again, decent bit of biomass that could potentially die.
 
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Your last part about the concern of killing off worms would be my number one concern too.
 
It sounds safe enough to give it more time. Personally, I feel that treatment success raises and falls with a good diagnosis. Would you be able to trap one fish and freshwater dip it?
 
Prazipro will not kill bristleworms. I guarentee this 100%.
 
As @AutumnReefs said - I always caution people treating their DT with Prazipro about it killing feather dusters worms and possibly harming clams, but in reality, people report back that it doesn't. I just learned this week something new: Prazipro doesn't actually kill flukes! What it does is temporarily cause them to lose their grip on the fish and they fall off. Due to their life cycle, they cannot ever get back on a fish, so they starve. Prazi breaks down pretty quick - so all of your worms and clams may go loopy for a bit, but because they are free living, when they recover, they are fine.
With prazipro though, be sure that you increase the tank aeration (not just circulation) the solvent they use can cause a bacterial bloom.

Jay
 
It sounds safe enough to give it more time. Personally, I feel that treatment success raises and falls with a good diagnosis. Would you be able to trap one fish and freshwater dip it?
Theoretically I could trap the wrasse, but in practice that'd be no easy feat. I really do not want to FW did a 1.5" tang.
 
As @AutumnReefs said - I always caution people treating their DT with Prazipro about it killing feather dusters worms and possibly harming clams, but in reality, people report back that it doesn't. I just learned this week something new: Prazipro doesn't actually kill flukes! What it does is temporarily cause them to lose their grip on the fish and they fall off. Due to their life cycle, they cannot ever get back on a fish, so they starve. Prazi breaks down pretty quick - so all of your worms and clams may go loopy for a bit, but because they are free living, when they recover, they are fine.
With prazipro though, be sure that you increase the tank aeration (not just circulation) the solvent they use can cause a bacterial bloom.

Jay
You know what's funny, is I've known that it causes spasms and drop offs but not death for a long time and yet never questioned all the input about it killing off worms.
 
As @AutumnReefs said - I always caution people treating their DT with Prazipro about it killing feather dusters worms and possibly harming clams, but in reality, people report back that it doesn't. I just learned this week something new: Prazipro doesn't actually kill flukes! What it does is temporarily cause them to lose their grip on the fish and they fall off. Due to their life cycle, they cannot ever get back on a fish, so they starve. Prazi breaks down pretty quick - so all of your worms and clams may go loopy for a bit, but because they are free living, when they recover, they are fine.
With prazipro though, be sure that you increase the tank aeration (not just circulation) the solvent they use can cause a bacterial bloom.

Jay


It never bothered any of big fancy feather dusters too which was nice.
 
Well I'm holding off. My wrasses behavior hasn't changed from day 1 and has done nothing but get fat and grow. The yellow tang seems to have stopped after just noticing it for 1 day. Maybe it's nothing.
 

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