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Fish will also flash if exposed to too much pesticides or meds. Don't get caught up in events and over treat or treat too often.

I've read it takes a couple weeks for the fish to heal their skin and stop flashing, how long has it been?

Congrats

I am afraid that you may have taken all the hassle for nothing. If you wonder what I mean you can read my thread: Koi flash for no obvious reason ......

:yes::like:

You well have to try and find a research paper for information if there even is one . Good luck with that.

I value my fish. I take great care of my livestock. :uggg: :yes:

Budget pond 😂 temporary to grow out for 3months, koi fry outgrown the crate bigger bog filter cycling more plants to be added once cycled new fish...

Actually I have done >15 degrees in difference from cold to warmth. I simply took the cold water with fish indoors into a tub and blew air into it...

You can move fish from cold to warm without much of a problem. I have done 10 degrees with no problems. And others have done more. As there...

Congratulations fly4koi. :yes:

Hi Simon, your fish would be benefiting from the slow warmer water entering the colder water housing the fish which would be slowly equalizing ...

I believe going from warm to cold is more critical, always acclimate your fish.

Looks like it.

I've treated twice with prazipro. Second dose was day 5 and today is day 10. Water temps in the low 60s. Does this look like a dead fluke? I'm been...