parameter swing

After upgrading lights from 2x Nicrew 150W to 2 XR30 Gen 6 without matching PAR and keeping settings low on the XR30, my water parameters are: calcium 500+, magnesium 1500+, and alkalinity 7.7. Since I only use kalkwasser in my ATO and it absorbs magnesium, I'm surprised by these results. Has...

As stated in the title, did a water change last night of about 4 gallons with IO reef crystals. Today my alkalinity had spiked to 9.5 from 8.5 before doing the water change. What’s the best course of action to keep the alkalinity as stable as possible. last water change was about 3 weeks ago...

I built a sump with my own two hands! Bahaha. Has a skimmer, and live sand, and bio media, but I’m sure I could add more things. ****’s expensive tho. However my hammer receded like 3 heads, sad day. And my torch just looks sad. Other corals seem to be well, I’d say 30/70% (30 doing ok, 70...

Hi all, I'm currently struggling with some parameter issues. I've attached at the bottom what my levels are as of this past Saturday and a video of my tank. Right now I'm slowly trying to raise my salinity by topping off with 1.026. My pH has be stable at 8 for about two months. My nitrate...