Can fish get better over night?

[Fish.Bum00]

Posted a couple days back, that my melanarus and One-Spot Foxface were breathing really fast, not eating, and lying near the sand in the morning. This was after QT and being healthy in DT for a month+.

I was able to catch both, give them a FW dip and Formalin bath, and put them back in QT, water dosed with GC.

The rest of the day they didnt look any better. Wrasse on the bottom of the tank and breathing heavily, and Foxface about the same.

The next morning they looked totally fine, swimming around, eating, back to normal. I was certain they were on their way to fish heaven when I went to sleep.

I'm going to do 2nd dose of GC and continue feeding GC food, but I'm wavering on whether or not to redo entire QT process, copper, etc.

Has anyone had fish miraculously recover and toss back in DT. Any issues with fish getting sick again?

I have just don't want to redo copper if it's not needed. I thought it was flukes, then velvet, then I was just confused.

What experiences have you had?

The two clowns, firefish, YWG, inverts and corals seemed healthy as usual.

The Melanarus and Foxface are still in the QT tank for now

 

[Big G]

Sometimes the flukes are deeply within the fish's gills and are protected by the gill's mucous to some extent. So doing the second dose will take a second whack at any new eggs that have hatched and or worms that escaped the first dose as well. On occasion a second round of treatment is needed. So it's not uncommon for symptoms to kinda come and go seemingly at random.

 

[deahttub]

At one point in the fluke lifecycle, they drop off the host....could have happened to your fish

 

[Fish.Bum00]

Hoping most dropped off during FW dip and Formalin bath and the two GC treatments are attacking eggs.

I still don't really know what it was. I'll keep an eye on it