210 gallon Frontosa build

[DJRansome]

The difference between 7.8 and 8.2 is concerning.

 

[Caperguy99]

I would continue to monitor your perimeters. I used to do a lot more water changes than I do now. Testing a few times per week now with text strips to monitor ph, gh, and nitrates. I'm on city water and also use a test strip prior to putting the water in the tank to ensure no crazy swings from the municipal source. Generally out of the tap I have liquid rock living in Michigan, high pH and gh.

I also add some buffer to the recommended level and Seachem safe. You are doing everything right, just keep an eye on it.

Thanks! That’s sort of where I landed -

Watching the fish, two of them are definitely shocked and have been since the Sunday water change. Guessing it was the PH difference, although that’s rectifying itself. It’s my largest and smallest - both are hiding, dark, and generally lethargic and not eating. At this point, I just hope they both survive.

These seem to be the symptoms you get when you Google things like “water change shock” or “PH shock.”

Moving forward, I’ll probably skip a water change this Sunday just to give them more of a break, then monitor levels and maybe not do any more than 25% at a time again - at least for awhile.

 

[Caperguy99]

The difference between 7.8 and 8.2 is concerning.

Absolutely, it affected them. I’m hoping now that they survive and I can avoid such large swings in the future.