Mopani driftwood okay?
 

I was just wondering if anyone has put mopani driftwood in a saltwater aquarium or if anyone can foresee any issues with doing so. after reading about it, the only issue i could see with it is if it lowers my pH, but if i use a buffer then I assume this wont really be an issue. But maybe someone out there knows more.

I have no experience with this, but my experience tells me that this is a bad idea. Maintaining a correct alkalinity in a marine environment is a difficult challenge, and adding driftwood will only make this more difficult. I see no reason at all why you would take this step.

I agree with the potential issues with alkalinity and with a couple of other things. Do you know where it came from? It could have different metals soaked into it and could cause other issues as well.

just to let everyone know what's going on with this...

I had been curing this piece of driftwood since well before I ever got any live rock, and has been sitting in my tank for months before starting this thread. I posted the question about the time that I would be considering placing fish into the tank. I haven't had any issues with the pH (other than adding neutral RO water during a water change, due to my own stupidity), and everything seemed fine, so I thought I would add a few small inhabitants and see what happens.

I got a small invert pack of a few snails and hermits, and 3 cardinals, and there doesn't seem to be any problems. So I planned on monitoring them and the levels for a while to keep an eye on it, but I don't really think there will be much of a problem at this point.