Over the past several months, I have been trying to raise magnesium and calcium levels with supplements and it does not seem to be doing very much.
65 gallon reef with a 10 gallon refugium (just added fuge a few weeks ago). I dose vodka - been doing that for about 3 years - tank has been running a bit over 4 years.
I had been using filtered tap water until about end of January this year. Since beginning of February, I have been only using RODI
- did quite a few 30-40% water changes for first few weeks and now do 10% changes religiously every 4-5 days. Coral looks better than ever and fish look great. Have an HOB
Nitrite, nitrate, ammonia and phosphate are 0.
Any suggestions? Since coral seems to look good and appears to be growing / splitting, do I need to worry about the Mag/Calc levels?
Here is a chart of the log of the metrics.