Trumpet coral not opening

[SeattleReefer]

What could be reasons for this?

 

[Tahoe61]

Please provide chemistry, Alk, Ca and SG and age of tank, and lighting.

Thanks for the image.

 

[SeattleReefer]

Please provide chemistry, Alk, Ca and SG and age of tank, and lighting.

Thanks for the image.

Ok the tank is about a year old, lemme get back to you on the other specs

 

[SeattleReefer]

Please provide chemistry, Alk, Ca and SG and age of tank, and lighting.

Thanks for the image.

0 ammonia, 0 nitrite, 5 nitrate

 

[Tahoe61]

0 ammonia, 0 nitrite, 5 nitrate

Alk, Calcium and Specific Gravity.

I am assuming the tank is completely cycled.

 

[SeattleReefer]

Please provide chemistry, Alk, Ca and SG and age of tank, and lighting.

Thanks for the image.

The calcium is around 400 PPM

 

[SeattleReefer]

How would I measure the light?

 

[Tahoe61]

How would I measure the light?

The brand name of the fixture and the %/intensity that it is set at. You can't measure Par unless you have access to a par meter.

What is the issue you are seeing with the coral specifically?

 

[SeattleReefer]

How would I measure the light?

The brand name of the fixture and the %/intensity that it is set at. You can't measure Par unless you have access to a par meter.

What is the issue you are seeing with the coral specifically?

Well like the picture showed, it isn’t fully extending and may be receding

 

[SeattleReefer]

0 ammonia, 0 nitrite, 5 nitrate

Alk, Calcium and Specific Gravity.

I am assuming the tank is completely cycled.

Yes, fully cycled and my hammer coral and soft coral are doing fine

 

[EnterName]

Astraeosmilia corals appear to be very sensitive to changes in phosphate levels. For how long do you have this coral and do you monitor phosphate?

Edit: Thanks to thamnasteroid for correcting the classification from Caulastrea to Astraeosmilia.

 

[SeattleReefer]

How would I measure the light?

The brand name of the fixture and the %/intensity that it is set at. You can't measure Par unless you have access to a par meter.

What is the issue you are seeing with the coral specifically?

Kessel 160WE 50%intensity

 

[Mr. Mojo Rising]

Why only 50%? Isn't that a 40 watt light? Thats not a strong light, why run it at half power? What size is the tank?

 

[EnterName]

Why only 50%? Isn't that a 40 watt light? Thats not a strong light, why run it at half power? What size is the tank?

Ah, you can always count on Mr. Mojo with the good questions!

The Astraeosmilia is sitting at the bottom, so the depth will be very important. Even if corals near the surface do fine with 40W... I doubt corals at the bottom will (assuming the tank isn't very shallow). It's a quite blue light already so the coral might not get much usable red or green spectrum at that point.

Edit: Thanks to thamnasteroid for correcting the classification from Caulastrea to Astraeosmilia.

 

[SeattleReefer]

Why only 50%? Isn't that a 40 watt light? Thats not a strong light, why run it at half power? What size is the tank?

Only 15 gallons

 

[SeattleReefer]

I will put the light at full intensity, hopefully the trumpets at the bottom will get more light

 

[Mr. Mojo Rising]

Only 15 gallons

To give you an idea I use AI Prime on my 15 gallon which is 55 watts and I have it set it 85% for mostly mushrooms and zoa's and leathers.

 

[SeattleReefer]

Only 15 gallons

To give you an idea I use AI Prime on my 15 gallon which is 55 watts and I have it set it 85% for mostly mushrooms and zoa's and leathers.

Ah ok, what would you suggest the color to be at? More blue or more white

 

[Mr. Mojo Rising]

Ah ok, what would you suggest the color to be at? More blue or more white

When we talk about lighting intensity we are talking about the blue's. White is more for our personal viewing, I generally like mine around 35% on my tanks, some like it higher and some turn it down to zero.

 

[SeattleReefer]

Ah ok, what would you suggest the color to be at? More blue or more white

When we talk about lighting intensity we are talking about the blue's. White is more for our personal viewing, I generally like mine around 35% on my tanks, some like it higher and some turn it down to zero.

Oh you weren’t talking about the intensity? The light has a knob for intensity and a knob for color