Half of my montipora is gone!

BRS

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Look how half is dead. I just noticed it now. I honestly see a lot of my SPS corals having STN/RTN.
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Zoanthids
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Parameters:

Alk: 9.8dkh
Cal:440
Mag: 1360
Phosphates: 0.08
Nitrates: 5ppm
Temp: 78

I have been adjusting my lights a LOT recently. Same schedule but different intensities and spectrums because I wasn’t satisfied how the tank looked with my LED’s.
 

vetteguy53081

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Light and flow have a heavy impact and may be part of the issue. Parameters seem good- what test kits are you using?
 
Fritz
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It’s a new tank. But I’m getting an explosion of coralline algae.

C3D6A94C-A662-45BE-A71E-6FAB8E5F6D7D.jpeg
I glued my aquascape together and there’s evidence of coralline algae growth on the glue. It’s also on the rocks and some are starting on the back wall too. But yes, it’s a new tank.
 

Dkmoo

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SPS needs stability in the right range above all else - stability both for things we can measure, and things we can't. RTN and STN suggests one or more of the above is not right. Changing the light so much very likely is part of the cause. In young tanks, the stuff we can't measure could also be unstable, but its much more difficult to diagnose or check if thats part of the cause. This is why generally people recommend a mature tank before SPS
 
Fritz

tehmadreefer

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+1 tank too young
+1 fiddling with lights too much
This 100%
The more one messes with stuff, the more your corals are going to suffer, as you are experiencing first hand. Plus, thank is too new, for someone that is new to the hobby, meaning several years of quantified coral care.
Another tidbit, even if
Your “numbers” are in range of keeping corals, none of that will matter without the proper maturity and biodiversity. Which newbies just don’t understand.
 
OP
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Wait, what? There's no mention of using anything that this person plucked out of the ocean.
No no. That person was referring to my other thread where I added some sand and water from the beach. I used half of a 5 gallon bucket to collect ocean water and sand.
 
Top Shelf Aquatics
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Update. I cut half of the montipora that was dead yesterday but some edges of the RTN was still there. It spread even more today! Looks like not too much longer until this coral is dead. It was purchased as a bigger piece, and I’m glad I split it in half because the other piece is well.

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LeftyReefer

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If your water params are all good, I would suspect the lighting. (too much!)
I dang near killed all my monti's when I first started. I bought monti's thinking they were easy, and then struggled getting any of them to live, let alone grow. Realized my lighting was way too intense. Backed off the lighting and they all recovered and are now doing great.
 
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If your water params are all good, I would suspect the lighting. (too much!)
I dang near killed all my monti's when I first started. I bought monti's thinking they were easy, and then struggled getting any of them to live, let alone grow. Realized my lighting was way too intense. Backed off the lighting and they all recovered and are now doing great.
I think that’s the main reason I’m having issues. I’m using 4 ai hydras and I put all the frags on the highest rock without light acclimation.
 
Maxout
BRS

How long does it take to you to get an inch of acropora growth? (on average)

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