Hi. I am currently treating a sick fish in 2 rubbermaid containers. By the time I am ready to switch him to the next tub (24hours later) the pH in his tub is 8.2 and the pH in the new one is 7.8. I really do not want to stress him out with the pH difference and was wondering how I go about raising the pH with baking soda?

Do I just experiment with it until I found out how much I need?

Baking soda is completely safe with fish right and won't clash with meds such as Maracyn and Parasite Clear?

Thank you

P.S. I'm really sorry I posted in water chemistry too but I don't think I would have gotten a response in time and I am about to do a waterchange..you can delete one of my threads><, so sorry!

I would age the water before using it. You probably have a bit of CO2 in your tapwater and when it dissipates, the pH climbs. So, if you let your water sit out for 24 hours before using it, the pH should remain pretty stable between the two bins. That is, IF you choose to raise your salinity using the sterile tank scenario.