James983
Active member
So yesterday I did my usual 10% weekly water change using the end of a 200 gallon box of ESV salt. I mixed it as usual making sure the temp. and salinity matched the tank. I noticed the PH drop only slightly from 8.41 to 8.44, which happen every time.
After the water change I watched as one of my Acros (JF Iceberg) shed it's tissue in about 5 mins. I've never seen a coral S&%^5 the bed so fast. I watched the rest of the corals waiting for the worst and nothing else was happened. No other corals even closed their polyps and I have some demanding corals like Hawkins Echinata and Ice Fire Echinata.
My RO/DI is reading 0 TDS. I checked my calcium this morning: 450 PPM, AlK reads a bit high 10.2 dkh, Mg 1400 PPM, PH 8.42. Also, my newly mixed salt water goes in through the sump not the display so the water was well mixed.
So now I'm sitting wondering ***! Anyone else ever see anything like this?
After the water change I watched as one of my Acros (JF Iceberg) shed it's tissue in about 5 mins. I've never seen a coral S&%^5 the bed so fast. I watched the rest of the corals waiting for the worst and nothing else was happened. No other corals even closed their polyps and I have some demanding corals like Hawkins Echinata and Ice Fire Echinata.
My RO/DI is reading 0 TDS. I checked my calcium this morning: 450 PPM, AlK reads a bit high 10.2 dkh, Mg 1400 PPM, PH 8.42. Also, my newly mixed salt water goes in through the sump not the display so the water was well mixed.
So now I'm sitting wondering ***! Anyone else ever see anything like this?