First post here so hope I found the right forum area. For a few months now my hammer coral has been puffy and I can not figure out why, hoping someone with more experience might be able to help. Chemistry is on from what I can tell- calcium 450, alk 8.4, ph 8.34 on probe, no detection of no3 or po4. Salinity at 1.025 and temp stays 75-76. When it originally happened thought maybe my light bulb was getting weak and went to the current Tru lumen. Made no change, last week I got a AI prime to try more light and still when lights on it puffs up like a balloon. Have even had 3 heads bail out prior to AI. Any ideas would be great I really appreciate it. Sorry for Poe picture quality I only have my phone to take photos.
Tank info
Bio Cube 29
Mj1200 pump
Hydro korilla nano wave makers
AI Prime HD light
In tanks baskets Chato with light
Purigen and chemi pure
3gal water chages weekly with read sea coral pro salt