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  #31  
Old 12-25-2017, 12:18 AM
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G.Alexander G.Alexander 目前離線
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I would recommend to decrease the salinity over a week or 10 days, if you do this to quick corals might respond with additional TN.

Check KH and Ca regular while doing this, both levels will come down also, same as potassium.

Just supplement KH, Ca and K+ with additives as necessary and ignore the PH, there is no need to supplement it usually.

G.Alexander
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  #32  
Old 12-31-2017, 12:38 AM
___a.li___ ___a.li___ 目前離線
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Any thoughts what type of algae is in these pictures?
I mean those black algae’s looks like coralline:







No3=2
Po4 = 0.061 ppm
And the sand is still brown:





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Last edited by G.Alexander; 12-31-2017 at 12:49 AM.
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  #33  
Old 12-31-2017, 12:50 AM
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G.Alexander G.Alexander 目前離線
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Can you remove the algae with a brush easy ?

Have not seen this kind of algae, does it start to spread ?

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Old 12-31-2017, 01:01 AM
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Quote:
Originally Posted by G.Alexander View Post
Can you remove the algae with a brush easy ?

Have not seen this kind of algae, does it start to spread ?

G.Alexander


No its hard like purple coralline,
I dont know yet, Its funny but I aware of them just last night.
I should inspect them closely.

In normal light their color is very dark, like black.
But in flash light of camera they are very dark GREEN.
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Old 12-31-2017, 02:23 AM
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From older pictures of the tank, I can say they were very little spread two weeks ago


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  #36  
Old 12-31-2017, 11:57 PM
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I would expect it is just some kind of coralline algae.

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  #37  
Old 01-04-2018, 11:32 AM
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From my experience in reefing I have used multiple types of live rock but always in the dark in my new aquariums the rocks had some areas of green which later turned purple. You can get multiple colours of coraline algae.
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