water parameters w/ concrete background
I have a 3D background soaking to leech out any (or as much as possible) of the effect that the concrete would have on my tank water. Is it correct that the pH is the primary parameter to keep my eye on, as in 'when pH remains stable with the background in the water, then it's ready'? Or are there other things I need to keep track of as well?
Also, I tried to go pretty nuts sealing it with silicone. Will this buffer the effect of concrete on the water, or not make a difference?