Setup a Red Sea Reefer 525XL 9 months ago using Pukani Dry Rock that I Bleached and Acid washed. This is the first tank I've ever setup with dry rock. Always used Live in the past. Using RO/DI TDS 0 , Aquaforest Reef Salt, Been dosing Aquaforest Component 1 2 3 in equal parts at 26ml. I'm also using ABVE (AF trace elements) and my parameters have been very stable for the last 4 months. Alk 8.4 Ca 445 and Mg 1340 I have 25 SPS frags and 8 LPS corals and a few Zoa's and all were encrusting, growing and doing well. I added 10 sps frags 7 weeks ago and have been testing Alk daily, expecting an increase in Alk consumption. My alk has been rising approx .1-.2 dkh daily. (Hanna Test) I backed off my dose 2ml and still had increase. backed off 4 ml and still had increase. I completely shut off my doser for 30 days now, and my tank seems to have stalled at consuming ALK. Lost a few LPS and a couple of SPS frags and have STN on a couple more. Only change to the tank is I purposely raised Nitrate and Phos Gradually to try and fight a small Dino outbreak. Currently my Nitrate is at 10ppm and Phos is .10 Prior to raising my nutrients my Nitrate was 2ppm and Phos was .02 Not sure if raising nutrients could have an affect on Alk consumption. At this point I'm just monitoring daily and will re introduce my doser once I see a drop. I reached out to the AF group and I performed a 30 gallon water change as recommended but trying to avoid water changes due to the Dino I'm experiencing. After my water change I tested today and my params are Alk 8.3, Ca 452, Mg 1500 Nitrate 10ppm and Phos .10 SG 1.026 Temp 78. Dosing pump still turned off. I thought I'd post here on the Reef Chemistry forum for thoughts, suggestions or ideas on why this is happening? I've been reefing for a really long time and never have experienced anything like this before. Thanks in advance.