I have recently gotten three blasto's one wellsi and two merletti's. From my understanding the wellsi is harder to keep. But surprisingly it's the one of the three that look good. The other two looked great in the store and looked good the first day, but since I have brought then some of them have retracted into there skeleton and the ones that have not retracted are losing color and look to be shedding. I am also have issues since adding them with my green star polyp I recieved for free from barrier reef aquarium with a coupon I got from a grab bag at their sale. They were all starting to come out and start waving in the current but since I have added the three blasto's and the zoa that I bought for twenty dollars they have all stopped coming out and started to lose the purple color from the base. The zoa is doing great without any issues. My salinity is 1.24 ammonia 0 nitrite 0 nitrate 0 ph 8.0. I don't have test kits yet for mag, calcium, phosphate and alk. Just started getting corals and will be purchasing them in the near future. I have a 90 gallon with a 4 bulb vho t5 setup with 4 moonlight led's. And have a koralia 1050 gph powerhead as well as the 1200gph marineland powerhead with a return pump from my fuge being about 400gph at a 5 foot head height. Any one have any ideas on what could be going on? hope i have given all the info needed. also have done two 25 gallon water changes with rodi same temp, same ph, same salinity in the last week using kent marine reef salt. because of cloudy water. water is really clearing up but corals are confusing me. Thanks everyone