The V snails are both small and large. Many I do not even see the tubes or know they are there until I feed the tank then.... wham- mucus tents all over the place. I am no longer feeding our Reef Club's homemade food and have gone to 90% pellets because of this - I do not overfeed (1-2 times per day) as the Trigger and the Gold Rim are constantly following and "eying up" anybody that comes close to the tank hoping for food. I put in a 1/4 sheet or nori 1-2 times a week as well.
I also think the other issue I was (fingers crossed) was my lighting = old Reefbreeder V24 and a G2 xr30 upgraded to a G3 about 5 years ago. I dont think the Xr30 was working well even before I dropped it into the tank (cough.cough) 2 months ago as the par under it was not even as good as the Reefbreeder V24 which is also pretty old ( 5 years) . It will be interesting to remeasure the par values with my new lighting setup - please refer to the build thread for those details.
I also think an issue may have been that I was not changing out my GFO as often as necessary, so dealing with an imbalance between PO4 (averaging around , .12- .09 on my Hanna URL phosphorous test) and No3 which remained a trace only = below 2 but not zero on Salifert. In the middle of nearly just giving up over the last year, because I could not keep any branching SPS (which is my favorite), I did do a IP test = It came back looking good with only one thing slightly off = Iodine slightly low. Alk ranges from 7.8-8.6, CA = steady at about 450, Mg 1250-1400. I do have 2 BRS dosers- but had no reason to dose as the uptake was so minimal because coral was not thriving that my weekly 15 gallon water changes took care of it.
I did take a Purple Monty that was dying to the local store and had them look for bugs of any kind under a microscope- they found nothing.
Tank fish = White faced Gold Rim Tang, a Pygmy Angel , 3 Clowns, a male Blue Throat Trigger, a Melaranus Wrasse, a few Neon Cleaner Gobi's, a "Dori" Blue Tang, a Tommy Tang. I had a very nice Regal Angel that I sold thinking he was munching on the corals- but I only saw him eat Zoa's. NO change after I sold him - bummer, but my Zoa's thanked me.
Current water flow into the 150 gallon display tank is about 1800- 2000 GPH from the basement sump going to 4 sprayers ( 2 have those heads= inducers?? on them that make the water around it suck threw the sprayer to get move movement of more water ) located in different areas of the tank - and a MP40 on wave mode at 75%. I did have other wave type Jeboa pumps but they are gone ( failed and not worth fixing). If I start having success again- I do have another MP40 not being used that I will put into the tank. Skimmer is a older Vertex 180int with a newer pump - I have to clean out the skimmate and clean the throat about every 5 days. Also use 2 x 7 inch filter socks changed weekly or when they are showing any signs of clogging = have 4 sets of them and they are hand cleaned with a pressure hose when dirty , then put into a bleach solution for 48 hours, then rinsed with RODI water and then hang dried.
So have at it people- any additional ideas besides my own poor husbandry and or ignorance as top why my tank would not keep any branching SPS alive??
Thanks in advance- and please do not think I will be offended if you say something negative - I have pretty thick skin. LOL