controlling PH at hyposalinity

[Moonstream]

I'll be starting a hyposalinity treatment in a 29g hospital tank for my fish (listed in my sigg below) tomorrw, since I'm setting up the tank today.

Im worried about PH drops while lowering the water. I know you're supposed to use baked baking soda, but I dont completely understand how to do that.

how low can the PH go before I should start to worry? should I just go off the behavior of my fish (what I was planning to do)?

how much should I be adding, can I just dose it in small amounts? if I drip it, how fast should the drip be?

 

[JustinM]

Bump cause I am curious as well

 

[Cyphercodes]

I would also like to know. Salinity down to 1.010 will work on 1.008 tomorrow. Having trouble keeping the PH up to 8.2. Its down to 8.0 right now. The RO Water I am using PH is at 8.8 to counter the dropping PH level.

I am unsure how much cooked BS to use and how to set up the drip. Please help.

 

[disc1]

I would also like to know. Salinity down to 1.010 will work on 1.008 tomorrow. Having trouble keeping the PH up to 8.2. Its down to 8.0 right now. The RO Water I am using PH is at 8.8 to counter the dropping PH level.

I am unsure how much cooked BS to use and how to set up the drip. Please help.

The pH of the RO water will have zero effect on the mixed salt water. Any buffer you add to the RO may, but it would be best to dose it according to whats in the tank. Setting the pH of the RO water is not any reliable means to setting the pH of the mixed salt water.

You can go pretty low. 7.8 is nothing to worry about and excursions as low as 7.5 won't kill the fish. It's a little harder to maintain pH at hyposalinity and this is one place you might use a pH buffer. The balance of carbonate to bicarbonate is going to set the pH. There's not a reliable way to determine what the pH is going to be after the addition of a certain amount of carbonate. It depends on the water you are adding it to and it's alkalinity level and buffering capacity.