Coral bleaching?

[jstabile316]

Does it look my hammer and frogspawn are bleached or starting to? Here is a big with just white and then with whites and blues.

 

[jstabile316]

Close up pictures

 

[P-Dub]

Hard to say with any certainty but they sure do look to be lacking a normal amount of zooxanthellae. Could you tell us a little about your lighting, type, spectrum, and schedule as well as share your parameters and how long you have had the corals and their placement within the tank?

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[jstabile316]

tank in a 29 gallon standard so 18 inches tall with a sb reef light mounted 12 inches above above the rim. Lights don’t have any special ramp up or down, blues at 50% whites at 20% blues come on at 130pm and off at 10pm white turn on 230 and off at 8pm. I would say the hammer is mid-tank and frog is 1/3 from the bottom. I got the hammer in august with 1 head and it now has 4 and 1 splitting and the frogspawn prob around early December with 1 head and now has 3. They have both been around the same height since I got them.

Alk- 8.1
Ph- 8.3
Nitrate. 5
Phosphate- .03
Cal- 440
Mag- 1350

 

[jstabile316]

That’s a 5 ppm for nitrate not .5

 

[P-Dub]

N

tank in a 29 gallon standard so 18 inches tall with a sb reef light mounted 12 inches above above the rim. Lights don’t have any special ramp up or down, blues at 50% whites at 20% blues come on at 130pm and off at 10pm white turn on 230 and off at 8pm. I would say the hammer is mid-tank and frog is 1/3 from the bottom. I got the hammer in august with 1 head and it now has 4 and 1 splitting and the frogspawn prob around early December with 1 head and now has 3. They have both been around the same height since I got them.

Alk- 8.1
Ph- 8.3
Nitrate. 5
Phosphate- .03
Cal- 440
Mag- 1350

Not enough light. Increase your blues up to 100% over the next couple of weeks or three and increase your on times to 12 hours blue and 10 white over the same timeframe. These are tropical corals and get a longer light period in nature. Just ramp up things slowly.

 

[jstabile316]

So leave the whites at 20%?

 

[P-Dub]

So leave the whites at 20%?

Yup.

 

[vetteguy53081]

Increase also the light schedule time.
Suggested would be Moderate light with moderate water flow.
Blue on at 8am 010p
whites same percentage on at noon until 6-7 pm
reds t 3% if adjustable

Temp 77-79
salinity 1.025
ph 8.1-8.3
nitrate < .04
Phos < .04
Ammonia < 03
Mag 1300
alk 8-9
CA 440

What is age of tank?
What test kits are you using ?

 

[jstabile316]

Tank was set up June of 2020. Temp is 79 salinity 1.026. Salifert for everything except alk and phosphate I’m using Hanna.