Corals Not Opening as Much

[nondan]

Thanks for the advice their guys!

Ok, I have a salinity showing 1.022 with my hydrometer, and I don't mix my own salt. I buy 2 x 25 litre drums from my local shop which has kept me out of trouble with any issues from my tap water.

The temperature fluctuates between 24 and 26 degrees.

The lighting I use is a fully automated LED system, by Aqualina. It has white, blue and purple LEDs, I believe the purple are for coral growth.

I have a fair bit of water flow, nothing directed at any of the coral. A pair of aqua one 10000 wave makers, both facing up at the sump return line to create a ripple on the surface and turbulent flow.. I also have a Vortech MP10 currently set on short pulse mode, the corals do tend to sway back and forward when in happier states.

I am due for a water change tomorrow, so hopefully will see an improvement from their and will hold off on the strontium and reef snow.