Help identifying this outbreak (corals dying)

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s1ngle said:
Please could you help me identify this 'algae'?
My 3 corals has been already suffocated by this :(
I tried methods for cyano and for dino but both were futile.

https://i.imgur.com/cIlKBJn.jpg
https://player.vimeo.com/video/328970393
Click to expand...
honestly I'm not sure but it seems to be a algae of some kind maybe related to hair algae so I would try methods for removing that but first I would try to remove as much as possible by hand e.g. by pulling it off or with sizers and a net
 
It looks like hair algae to me. The best way to get rid of it is to first physically tear and siphon it off of the rock and then reduce nitrates and phosphates to eventually keep it from growing back. Shoot for under 5ppm nitrates and just detectable phosphates (.03). It will not vanish immediately and may take a week to clear up at those water parameters.
 
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I tried:
- lowering parameters
- raising parameters
- scrubbing it off
- GFO in/out
- VSV
- dosing bacteria (MicrobeLift Special Blend)
- frequent water changes
- infrequent water changes
- increasing/lowering food

Parameters history in the attachment.

It's hard to pull it out and seems like it's been worse when I started to scrub it off with a toothbrush.

It's 190G so it would be a huge amount of manual work. Any chemistry? But I'd need to identify it somehow :(
It's like purple in colour and pretty thick (not slime).

Screenshot 2019-04-08 04.39.55.png
 
Algae cures without very aggressive actions take awhile.

Some personal examples spent: 2-3 months dealing with dinos.
6 months of switching between ulva and cyano after my nutrients raised a lot more than i intended dealing with the dinos.

3 years still have a bubble here and there from bubble algae [emoji23]

I agree remove the algae, i do two things one vacuum out what i can then scrub what wont then turn all the pumps all the way up and attach a 10 micron sock for a few hours.

Grid your sand bed, deep clean 5% a day till all of it is cleaned, i use an electric gravel vac for this.

Then i feed a set amount each day till my nutrients find a home in range of detectable-10 ppm no3
Detectable to .1 po4

For rocks that come out i use h2o2 i know others feel safe using in the aquarium, i havent gotten that far yet [emoji23]
As far as what algae you have.
Its not dinos, if can get a sample out of the water and photograph on a white paper towel after most of the water has absorbed out of it could help id it. Hard to tell with the actinics.
 
View ReefStash's latest YouTube video!
3 day blackout had no effect on this plague I do not know what to do
 
My Algae filter Chaetomorpha (Spaghetti) is being suffocated as well... most of it is dead I think
 
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Just to arrange the rocks (flow and corals) it took 3 days 4 hours each day.
 
AS
This stuff is growing even on the cover of my chimney where there is almost no water, just drops of them... what is this curse :/
 
i had some of that and I got a few Mexican turbo snails and they destroyed it
 
I am treating aqua with Fluconazole and Vibrant. Seems to help although it takes a long time. I also added couple of Mexican turbo.



btw. Is this anything to be worried about? Since I do not have Triggerfish anymore a lot of these showed up:

 
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