Echinata rtn

[GULF SHRIMP]

All 3 of my Echinata Frags have RTNed in the past week. Colors seem dull on a few other sps. all parameters look good other than 0 Nitrates and 0 phosphates, could they have starved?

 

[Art13]

i usually have problems with them when my system is too clean. Don't know if that's the problem, but just what i've observed with mine, specifically an ice fire.

 

[GULF SHRIMP]

That's the only thing I can figure. I wonder if I should get more fish, feed more aminos, set up a program on my Apex to not run skimmer 24/7, or a combination