Would anybody have any suggestions. It seems like every time I dose my Dendra does not open. Or only one head opens. As soon as I do a partial water change they all open. My average ph is 7.8 - 8.0 - Magnesium 1000, calcium 350, alk 8 dkh, nitrates 5.0, phosphates 0, temp 76 - 79, I am using warner calcium, strontium, soft coral trace, hard coral trace, iodide, Seachem 8.4, ESV 2 part. Everything does great when I don't dose, any suggestions.