Jurel6570
New member
Hi I am fairly new to this hobby. My tank has been set up for over 9 months. I checked my water and all is good. 1.026 sal cal is at 500 and alk is at 8.3. I do a 10% water change every ten days due to no protien skimmer. My problem is my hammer coral just keeps receding. I have moved it all around the tank to see what light and flow is the best. The part I don't understand is the frogspawn and torch are thriving. I can't figure out what I'm doing wrong any advice would be greatly appreciated.