See attached water parameters. I'm going to add chaeto and/or some gfo to get phosphates down and more water changes for the nitrates. What do you think I should do to increase alkalinity? Would kalkwasser be ok since my calcium is on the upper end of the spectrum? I have about 35 frags of mostly stoney corals that seem to be doing well and my tank is about 300 total water volume.
Thanks!
Thanks!