Altums—Frequency of water change and dealing with Columnaris

[Hank N.]

What’s the recommendation on frequency of water change and what’s the reality of them catching Columnaris?

Appreciate the “hard truth” on the Columnaris likelihood.

Thanks.

 

[Pterophyllum sp]

Somewhere between 50% weekly WC's, and 50% daily WC's depending on the number of fish, and the size of the aquarium. Columnaris/severe bacterial infection is completely dependent on where they came from. "10 day QT/acclimation" fish, will be much more likely to blow up than fish that are given 6/8 weeks of QT/acclimation IME