Hulk Acro frag Issue

[Gavin Noy]

Good afternoon everybody. Back with another problem .

Paramiters stable
1.026
9.0 dkh
18 nitrates
0.10 phos
calc 420
mag 1440
temp 26.2

par around 250 ish using AI prime 16hd all blues and violets at 45% on a fluval evo 6 months old. Using a nero 3 and turning the tank over in total about 80 times an hour including return pump.

This Hulk frag has deteriorated in 3 weeks from a pale patch on the side to white on the side. Pink Mille is ok and birdsnest is doing great.

Also have 2 torch corals, candy cane all fine but my rampage chalice is not great.

Will be doing an icp test next week

Thank you for any tips or information.

 

[Borat]

how young is your fish home box?

 

[Gavin Noy]

how young is your fish home box?

6 months old.

 

[Borat]

That is rather young for acropora - in my opinion.. I only managed to keep them after my tank turned 3 years old..

When people say SPS require stability - it's not just about stability of parameters but it seems some kind of biological stability / bacterial mix that only forms once the tank matures.