coral has really shrunk in size and turned darker is this normal

[Leeb343]

Hi my coral has really shrunk in size and turned darker is this normal as it was much bigger last week

Cheers

 

[54seaweed]

what kind of coral
what are your parameters
lighting
cant help with no info

 

[Leeb343]

It's a coral ph 8 ammonia 0 nitrite 0.02 nitrte 0 phosphate 0 silicate 0 kh 10 salinity 1.026 under 2 12000k t5 tubes

 

[Leeb343]

It's a coral ph 8 ammonia 0 nitrite 0.02 nitrte 0 phosphate 0 silicate 0 kh 10 salinity 1.026 under 2 12000k t5 tubes

Cladiella coral

 

[Ingy]

Probably not enough light. Needing Med-high light, I would suspect even a 4 bulb T5 would be insufficient.