Bubble & Hammer in difficulty

Red Fish

New member
Hi all,

My wife and I recently got a 30 Gallon tank (about 7 months ago) for our home. The bubble has been with us most of the way so far and the hammer joined him 4 month ago.

Both corals have been looking progressively worse over the last 3-4 weeks. Water changes are done usually ~2 weeks apart, with little success since things have slowly started to slip. Attached pictures of both corals for reference.
Not much luck. Looking for any insight.

Disclaimer: Baby wasn't cooperative so Calcium was hastily taken (real value lower). I'll retake all measurements tomorrow and update this post.

Red sea test kit.

Tank parameters:
  • Calcium: <375
  • Mg: 1520
  • Alk: 8.4dKH
 

Attachments

  • Hammer_8x8.jpg
    Hammer_8x8.jpg
    86.9 KB · Views: 1
  • Bubble_8x8.jpg
    Bubble_8x8.jpg
    97 KB · Views: 1
Have you calibrated your refractometer lately? What are your readings? SG? temp? Nitrates?

Sent from my SM-N920V using Tapatalk
 
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