What’s wrong with my corals

[Reefcube]

 

[Reefcube]

They look like they are sad. I never check my levels but have never had any issues. Now bleaching and stringy mucus coming off them

 

[saltypilot]

I would do a large water change, 40-50%. Make sure temp and salinity is right on.

 

[Reefcube]

Did one this morning but only 10 gallons. Do another one? I have dosed 2 part also today.

 

[PirateDan]

Never dose anything without checking levels first.

 

[saltypilot]

Ya I would do another water change, and be cautious dosing 2 part when not testing for calcium and alkalinity. If you dosed shortly before the tank started a downfall, I would do a larger water change 75%.
My guess is the calcium/alk is way out of balance.

 

[saltypilot]

I would recommend doing a larger 75% water change as if you were dosing without monitoring you probably overdosed the tank.
My guess is the alk and calcium is way out and you need to balance it out ASAP. Easiest way is to do a large water change.

 

[Mikedawg]

Yeah lime green candy cane isn't fully opened, etc. Zooxanthellae bailing out? Maybe time to check water parameters (including replacement water) unless you know something else has changed like lighting schedule, water source, contaminates.

 

[Reefcube]

I checked my calcium and it’s in the 300

 

[Reefcube]

Just did another 15 gallon water change

 

[Reefcube]

 

[DSC reef]

Keep water changes small and don't make a lot of sudden changes to quickly. My advice to you is to invest in quality testing equipment. Having a reef tank means testing often and keeping parameters stable. Problems that your seeing now could have started a while back. I'd recommend hannah for alkalinity and salifert for calcium, magnesium, nitrate. I would not dose anything you can't test for.

 

[ccoffel81]

I used to not check levels because every thing “looked” fine. Lost a few thousand dollars in coral too. Always monitor levels. I even check ro/di water for chlorine and ammonia it’s a waste because I have color changing resin and ppm monitor. I look at it like a fail safe.