Inflated Blastomussa Merletti

[EchoPear]

I have a Blastomussa Merletti I have had roughly 6 months now, transferred tanks one time in that period. It eats well, and puffs up every day

I am concerned about how stretched it appears to be, by the time I come home from work at the tail end of the full spectrum photo period it is almost wafer thin and very wide. This guy refuses to grow new heads just keeps getting more inflated over time. When I see pictures of this coral online the heads are smaller and more round and more plentiful. I supplement feed maybe once a week. Plan to start dosing the tank with Red Sea AB+ soon. Parameters below, reef crystals mixed to 35ppt with LFS RODI (I have my own unit in the mail). I do not know why my magnesium is so high, only things I dose are potassium nitrate or neophos occasionally if I notice a dip in levels

 

[Mr. Mojo Rising]

The alk is low, nitrate and phophate is low. Feed it and it will grow. It looks healthy though, I wouldn't worry otherwise

 

[EchoPear]

The alk is low, nitrate and phophate is low. Feed it and it will grow. It looks healthy though, I wouldn't worry otherwise

Was thinking the same on alk, was going to try one of Randy’s diy 2 parts. Already have the baking soda. If I dosed some all in one like all for reef I would assume it would push my mag even further too high? And if I dosed 2 part in equal amounts wouldn’t that push my calcium too high?

Been dosing to keep from bottoming nitrate/phosphate. Also battling GHA

Thanks for the tips!