Fish Breathing Heavy

mark_craciun · Dec 1, 2025

Just added a Humu Humu Triggerfish to my 450G aquarium after 32 days of QT.
He was fine yesterday, he ate and was swimming around like normal. Today he is hiding down in a rock breathing extremely heavy. There has been no aggresion from other fish all other fish are fine, all parameters are fine. I have all the lights off today and the room as dark as I can get it. Hoping he will calm down... Any other suggestions? Is he still acclimating? Its been about 15 hrs since I put him in there.
Thanks

TX_REEF · Dec 1, 2025

a clear video under white light would be helpful. upload to youtube and share a link is best. #fishmedics

Jay Hemdal · Dec 1, 2025

mark_craciun said:
Just added a Humu Humu Triggerfish to my 450G aquarium after 32 days of QT.
He was fine yesterday, he ate and was swimming around like normal. Today he is hiding down in a rock breathing extremely heavy. There has been no aggresion from other fish all other fish are fine, all parameters are fine. I have all the lights off today and the room as dark as I can get it. Hoping he will calm down... Any other suggestions? Is he still acclimating? Its been about 15 hrs since I put him in there.
Thanks

What quarantine procedure did you use?

Was there a salinity rise from the water in the quarantine tank to your display?

What size is the trigger and what sizes and species are its tankmates?

The Ugly Phase · Dec 1, 2025

they might be aggression when ur not looking was happening to my yellow tang when i was not looking stopped eating and was breathing very fast hiding only noticed it because the way the baby yellow tang was acting when the regal angel was near him

mark_craciun · Dec 1, 2025

Jay Hemdal said:
What quarantine procedure did you use?

Was there a salinity rise from the water in the quarantine tank to your display?

What size is the trigger and what sizes and species are its tankmates?

Coppersafe 2.5, general cure 3 doses. Use a hannah. He was doing great in QT, swam around like crazy, tons of energy. Did the general cure before adding the copper so it was more like 2 month's of qt.
I have quarantined a lot of fish in my day, never had a problem once they made it through QT.
Acclimated him for about an hour and a half. I don't think it was an acclimation problem cause he was doing so good yesterday after putting him in the DT.
Hes exactly 4.9 inches. Hes about the same size as all other fish, except my Niger trigger who is the king and is 7 to 8inches. He lets all new comers know he is the boss then leaves everyone alone, he's a great fish to be in charge. Peaceful, but dominant.

Jay Hemdal · Dec 1, 2025

mark_craciun said:
Coppersafe 2.5, general cure 3 doses. Use a hannah. He was doing great in QT, swam around like crazy, tons of energy. Did the general cure before adding the copper so it was more like 2 month's of qt.
I have quarantined a lot of fish in my day, never had a problem once they made it through QT.
Acclimated him for about an hour and a half. I don't think it was an acclimation problem cause he was doing so good yesterday after putting him in the DT.
Hes exactly 4.9 inches. Hes about the same size as all other fish, except my Niger trigger who is the king and is 7 to 8inches. He lets all new comers know he is the boss then leaves everyone alone, he's a great fish to be in charge. Peaceful, but dominant.

O.K., I just wonder if some dynamic changed and the trigger now feels threatened by one of the other fish….