Whats the old saying? If it aint broke, dont fix it?If you have had trout survive in current conditions, I'd throw the RBT in and see what happens? Then re-assess.Sometimes charts cause us to over medicate.

Remember, as I have read on here, if aeration is not brought about gradually, noxious gases will be brought up from the depths causing toxic conditions for the fish.

Give a man a fish, and he will eat for a day. Teach a man to fish and he will sit in a boat and drink beer.