Aging water with peat moss

Okay, here is the situation.
pH in garbage can with peat moss- 5.5
pH in tank without presence of peat moss- 7.5
So lets say I do a water change using the aged water from the garbage can and the pH in my tank drops to 7.0. Will the pH stay stable at 7.0 without peat moss in the tank or will I have to add it to keep the pH consistent in the tank?

Yeah I'm gonna have to do some testing myself and see what happens.


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So actually I guess my next question would be is if it's even worth it? I know I'm in the wrong area asking this but how do you think wild altums and wild satanoperca daemons would do in my pH of 7.5?


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I have got a link to some wilds and to my understanding the f1's are a lot harder to come by. I think I am going to take the time and figure out the peat moss situation and go from there. If I can get a system in place to stabilize the pH around 5 then Im gonna go after the altums and daemons.