help i think my tank is going to wipe out

[Mr Milt]

hey everyone for the last 3 weeks i have lost 12 good acro, and i can not find the problem. some of them are piling from the top and some just melt
my parameter
ca 410
p04 000
mag 1300
dkh 8

i am using bio pellet gfo and carbon
:headwallblue:

 

[uglyfish]

How long has the system run biopellets?

 

[Mr Milt]

1 year

 

[spsexpert]

seems like a lack (striped out) of nutrients

 

[DON NOLAN]

what kind of carbon and how much are you using

 

[tmb22]

I would take GFO and BP offline for a few weeks to see if things start to look better. Otherwise... Are you checking your salinity with a calibrated refractometer? (using calibration fluid, and not RO/DI water... this is important.)

 

[dan-in-gr]

I recently took my bio-pellets out after a year and corals look better. Just running GFO and the bare minimum for that.

 

[Mr Milt]

Ok thank for the info I will take them off line for now

 

[doosiec]

Definitely lack of nutrients.
Are the SPS's pale?
Do they RTN or STN from the bottom?