Sufficient for acclimating the fish or as a permanent routine ? Personally i'm big on not messing with PH much as messing with it can cause a lot of stress on the fish. People like to buffer PH all the time via various means with additives, but additives dont last long, and the PH changes again. There's this constant up, and down action.
Just throwing it out there. I'd add more but first i'm curious about this 3-4 weeks thing?
I'm not into the image, but into the hobby...