I m a newbie. Problem with my corals.

[greg75il]

Hello i m a very noob.

I have 2 corals who change since i have them few days ago. This was at start.

And this now:they have a cut and white thing on the cut.

. Can u tell me what s going on please?

 

[griss]

First, can you tell us a little bit more about your tank/system?
- What size tank do you have?
- How long has it been set up
- What kind of filtration do you have?
- What water do you use for topoff and water changes? Tap? Reverse Osmosis? Reverse Osmosis/Deionized?
- What salt mix are you using?
- Do you add any additives? If so, which ones?
- What lighting do you have?

Also helpful would be knowing what your water parameters/tests are? Particularly:
Specific Gravity/Salinity
Temperature
Ammonia
Nitrite
Nitrate
Alkalinity
pH
Calcium
Phosphate

 

[OldReefGuy]

New tank.....

 

[griss]

New tank.....

I think you might be correct. The rock looks like newly placed dry rock. Hopefully the OP will come back and post some more so we can help.