I have been a bit hesitant to update because things have been looking a little down. Our daughter had a baby (a month early) and we had to fly out with short notice to go see her. I thought tank would be fine on cruise control with someone handling the feeding of the fish but after 8 days I returned to a tank looking sick and unhappy.
My large monti looked pale and had several spots where it looked like necrosis set in and smal brown algae spots had emerged. My colors were way off from the week prior. Several colonies had multiple dying tips. And my back glass showed excessive brown stringy algae growth ( i regularly clean my rear glass pane and it will normally have some film algae on it after a few weeks-this just looked a bit worse than I have seen it in the past). My Alk tested fine (around 8ish DKH where it was 8 when I left) the day I returned but climbed a little the days following likely from the stressed sps not consuming as much 2 part. It never exceeded 9 before I lowered the dose. The days following things deteriorated and I lost several smaller frags and a few colonies. I removed the large Monti because it was so pale and damaged I thought it would only get worse and cause more harm. My nitrates were a tad high at around 12 but nothing crazy. Phosphates tested at 0. I did a large water change, ran some poly filter and carbon, and sent a sample to Triton which came back not showing anything way out of the ordinary.
A few days before we left I gave my water tank a good cleaning but rinsed with RO water and then dried before filling and mixing new salt. I switched to FRITZ salt but the auto water change was only changing 1 gal per day. Too insignificant to blame on that. I installed new carbon blocks and flushed before making new water which tested at 0 tds. I had taken in a few colonies from a friend who had a tank crash while on vacation and having his skimmer fail but those pieces were already pale and stressed and looked about the same.
Only thing I can assume is that the tank was perhaps overfed even though the person watching it isnt prone to that. Maybe the live blackworms died and were still being fed to the tank. OR I was regularly dosing aminos, flatworm stop, coral vitalizer, and coral booster and that week the dosing was suspended. I really have no definitive answer. I guess this is the mystery of reefkeeping.
Anyways it has now been just over 2 months. My grandson is doing great but the tank is still just sub par. Some things are great and others are still recovering. I increased my daily water change amount a tad and have been running a little carbon every 3 weeks. I am hoping things will get back on track soon and be able to report some good tank news.
Thanks to all who follow along - i figure its not a bad idea to post the bad with the good as so many other tanks on here that I myself follow.