So your saying.....all angelfish are kept in 6.8 ph at pet stores...
Not realistic to believe that.
No that's not what I am saying. I am saying if the pet shop he gets his angel fish from are keeping them at 6.8 and he is putting them in 7.6, it could put em in stress. Everything he has shown on his testing looks great. I am just giving him something to try that might help
I purchased an angel from LPS yesterday and tested their water at 7.6 PH. They have been selling them for decades. I don't know what the upper PH limit for angels is but I suspect it is not mid 7s.
6.5-7.5 I believe for the majority of species.
The thing is even if its high pH. 12 hours and all Angels die? Its not possible.
I am sure OP has some disease in his tank which was slowly spread and all other fish got acclimated but for Angels its too much to handle suddenly.
I purchased an angel from LPS yesterday and tested their water at 7.6 PH. They have been selling them for decades. I don't know what the upper PH limit for angels is but I suspect it is not mid 7s.
Yes I was right. Same has happened with me in past. You need to clean your tank thoroughly. If you can move remaining move fish to other tank then clean ur tank completely. Wash gravel and maybe do an anti biotic course in tank like amoxciline etc.I believe that you were 100% right. Some sort of disease. Reason I say that is because water parameters in tank are still good and I've lost my red tail and my bala shark in the past week. All I'm left with is 2 pictus and my rainbow. But I've been doing serious WC for the past 3 days and those 3 are still doing well. But anyways, I have since gotten a new medium sized angel and I put in my peaceful tank and he's doing well! He's been in there for 2 days now and is very active and eats well. Doesn't bother any of the other fish in the community either so I think he was a good match for my 36 gallon.
Angelfish are very hardy. Even if you dump them straight to ur tank without acclimated them they will be fine so there is something wrong with the other fish you have. They are being picked up at night I believe.
The thing is even if its high pH. 12 hours and all Angels die? Its not possible.
I am sure OP has some disease in his tank which was slowly spread and all other fish got acclimated but for Angels its too much to handle suddenly.
Yes I was right. Same has happened with me in past. You need to clean your tank thoroughly. If you can move remaining move fish to other tank then clean ur tank completely. Wash gravel and maybe do an anti biotic course in tank like amoxciline etc.
I bought Angelfish here and in one other country and never had any problems with them. I am not an expert aquarist but never had case of a fragile Angel. They are hardy and that you can find on Angel species profile info too.I don't know where you get your Angelfish because by and large most store bought angels are very fragile. Count yourself lucky.
Diseases have a very specific course of growth and infection. Without any single sign of illness I think it is VERY premature to say "I was right" in regards to infection. One of the only aquatic illnesses that exist that can kill healthy fish that quickly is columnaris and that has very prominent signs.
I would instead bank on it more likely being pH (Assuming the other parameters are being tested properly). Have you had the tank's dKH tested at all? If the dKH is too low it will cause wild swings in pH during the regular day / night cycle causing a lot of stress on fish.
An easy way to test if there's a pH swing is by testing it at night right before you turn your lights out. Test it again in the morning right before any light starts hitting the tank.