what is up with this frag

[armani4o3]

i have 2 of the same type of frag here is the good looking piece

now here is this one what is all over it and what should i do to fix it

 

[fcamargo6thave]

it looks like the second one might be gone,hard to tell. What type of lighting do u have and are you adding any type of trace elements or supplements to your tank?

 

[Kendall]

Looks like the good looking one isn't looking so good either. Could be light shock or water parameters are off.

 

[cali_reef]

Second picture is rubble rock for sure..

How long has your tank been up and running?

 

[armani4o3]

got 8x54 watt t5 ati bulbs tank up and running about 5 months i only do water changes i dont add anything else i will test my prams now... checked it out my sg is low along with everything else here is what i got
cal 420
po4 0
no3 0
alk/kh 8.4
ph 8.3
mag 1020
sg 1.020
If i get my sg up will everything else come up

 

[armani4o3]

how slow should i bring up the sg can i bring it up to 1.023 and not have problem or should i do it slow

 

[JARRETT SHARK]

yes do it slowly in 24-48hrs
also raise mag to 1350

 

[JARRETT SHARK]

did the coral make it or did it bleach?