I am not a huge stick guy. I like the colors, I like fuzzy acros like millis,but overall lack of movement is what kills it for me. The parameters seem fine for ulns run a lower alk to make it easier less growth maybe but no burnt tips to deal with. The only thing we are unsure of is flow and with cyano out breaks as others have said that may be a very large contributing factor. Pics would allow other to see the extent of coralline growth which could be an indicator also, but not necessarily.
When I set up an sps tank years ago I used dry rock, it was tied into and existing system with plenty of live rock so maybe that was the difference. My rock was bone white for at least 4 months. As soon as I set up the tank I put acros into it. People on the forums I was on told me that tank will crash and burn, its not mature enough. Maybe they didnt read my full build thread or my crazy long winded posts. Some sticks did great obviously some did not. Some of my issues where nutrients they were quite high. The acros I took out of the mixed reef I had did fine. Some of the new ones I had gotten did great others ok and some up and died. About a year after I set that up and the things that grew and grew well but maybe not the brightest colors I started bringing nutrients down trying to get the colors I wanted and saw in others tanks. That was/is the pinnacle of reefing right? sticks. Lost some sticks, lost some lps, zoas, macros. Really did a hard dive into ulns and found out most that run ulns keep a lower alk then I was, chased that rabbit for a while. Eventually I went back to how it was before sticks and the top of the reefing mountain became my unintentional goal. I lost some sticks but really didnt care, alot still grew and where pretty. I was happier, so were the rest of my corals. My point in all that? Many people that did this ulns thing pointed at dry rock and high alk as bad in the system. They all agreed if going or at uln alk should be no higher then mid 8s better to be 7.5-8. Has that changed in 15 years maybe I dont know. Sounds like it may have.....?
If you want sticks and cant currently keep them you need to make some sort of change to do so. I wouldnt say everyone and every tank can keep them but most should be able to. Pretty sure if I can do it most can do it. I dont think its a matter of getting the easiest to keep either, probably help. Acros out of existing tanks are going to be easier then out of the ocean for anyone same with most corals.
When I set up an sps tank years ago I used dry rock, it was tied into and existing system with plenty of live rock so maybe that was the difference. My rock was bone white for at least 4 months. As soon as I set up the tank I put acros into it. People on the forums I was on told me that tank will crash and burn, its not mature enough. Maybe they didnt read my full build thread or my crazy long winded posts. Some sticks did great obviously some did not. Some of my issues where nutrients they were quite high. The acros I took out of the mixed reef I had did fine. Some of the new ones I had gotten did great others ok and some up and died. About a year after I set that up and the things that grew and grew well but maybe not the brightest colors I started bringing nutrients down trying to get the colors I wanted and saw in others tanks. That was/is the pinnacle of reefing right? sticks. Lost some sticks, lost some lps, zoas, macros. Really did a hard dive into ulns and found out most that run ulns keep a lower alk then I was, chased that rabbit for a while. Eventually I went back to how it was before sticks and the top of the reefing mountain became my unintentional goal. I lost some sticks but really didnt care, alot still grew and where pretty. I was happier, so were the rest of my corals. My point in all that? Many people that did this ulns thing pointed at dry rock and high alk as bad in the system. They all agreed if going or at uln alk should be no higher then mid 8s better to be 7.5-8. Has that changed in 15 years maybe I dont know. Sounds like it may have.....?
If you want sticks and cant currently keep them you need to make some sort of change to do so. I wouldnt say everyone and every tank can keep them but most should be able to. Pretty sure if I can do it most can do it. I dont think its a matter of getting the easiest to keep either, probably help. Acros out of existing tanks are going to be easier then out of the ocean for anyone same with most corals.