Ok an update for you
Day after posting things got worse with the leather as part of it was starting to die and crumble away so took the decision to cut away the dead unhealthy bit, unfortunately it was affecting the stalk to so part of that had to go, my course of action was to remove some tank water to a clean seperate container then place the coral and several small bits of live rock and place them into the same container, once in there moved it all to a better working area and started by making sure I had a clean sharp blade (man are these things difficult to cut!) and cut a kind of pie shape out of the top larger than the unhealthy area, once that was done i cut the bit i removed so that i was left with 3 reasonable sized frags with only healthy flesh (not sure flesh is the right word) and used cynoacrylyte to stick them to several bits of rock, unfortunately the leather really was in a bad state and im having to monitor it very closely as a result as the stalk part really isnt looking great, 2 of the frags look like they may take one im not so sure about so will give it a chance before handling it agian.
The main leather thats left has continued to act as it did before opening slightly but periodically im moving one powerhead to blow away the dead tissue which is concerning me as i'm now not sure how well it will survive, I am currently considering removing the rest of the top as this seems fairly healthy and making a lrger frag from it in the hope it will survive and flourish.
Your comments on the best way forward would be greatly appreciated, as I would dearly love to save atleast one frag and hopefully more.
I have continued to monitor my water more often just to check there is no knock on effects with that and all seems fine.
