morning all, I've made a massive mistake been running red sea pro salt on my tank for last few months keeping alk stable at 11.5. bought 2 new coral the other day placed in tank and totally forgot that I was running a higher alk and both died and I was so so gutted as it was my fault. I've still got 3 full tubs of pro and was thinking of mixing with blue bucket 50/50? will this be a problem? I'm just trying to work out what both mixes will mix to but not got a clue how to work it out.