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  #46  
Old 09-22-2017, 10:32 PM
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G.Alexander G.Alexander ¥Ø«eÂ÷½u
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What is your actual dosing regimen and what are the actual PO4 and NO3 levels ?

Can you tell me something more about your rocks, how old are these and what kind of rocks these are ?

Have you already tried a sea urchin ?

G.Alexander
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  #47  
Old 09-23-2017, 09:46 AM
arringar arringar ¥Ø«eÂ÷½u
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Location: Atlanga, GA, USA
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Default Converting established tank to Zeovit

I have had these rocks for about 5 years. This issue started out of nowhere. The nitrates were at 4ppm when this issue started months ago and the highest it has ever been in this tank is 6ppm. Phosphate was completely undetectable per my Hanna ULR checker.

My Red Sea nitrate test says 0ppm nitrate. My nyos nitrate test kit reads barely detectable, something like 0.2-0.3ppm. My Hanna checker reads 0ppm phosphate.

This GHA is growing on everything, even the glass. I have 2 chaeto reactors running, the algae in the reactors is growing very very slowly, as if it has no nutrients to uptake.

I am running my zeo reactor at about 50-60gph. Dosing is as follows:

0.8ml zeostart per day
1ml Xtra every other day
4 drops zeobak twice per week
4 drops bio-mate twice per week
4 drops zeofood once per week (have not dosed this for weeks now)
4 drops spongepower every 3 days
4 drops coral vitalizer once per week

I have recently reduced dosing of xtra in an attempt to reduce the algae. My coral colors are starting to suffer as a result but the GHA has not been affected by the reduced dosing. The growth rate of this algae is dramatically increasing even though I barely feed, avoid any foods that are high nutrient, and adamantly monitor my RO water source.

I have very high flow in the tank. All this seems to do is blast the GHA free and get it stuck in my coral colonies. This variety has a weak anchor to whatever it is attached to, is very fine, and very slimy. It grows very long, like 4-5 inches long within a week.

I have a purple pincushion urchin, it has zero interest in this algae. I have also tried 4 different sea hares. Every time I get one it lays eggs all over my tank and dies within days after barely even touching the algae.
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  #48  
Old 09-23-2017, 10:53 PM
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G.Alexander G.Alexander ¥Ø«eÂ÷½u
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The picture is not very clear but if you are sure those are green hair algae and nothing else like Dinos I can not see any special reason for their growth which has something to do with the dosing regimen.

I just can tell that it is very common that hair algae start growing in systems which where running kalkwasser for a longer period:

http://zeovit.com/forums/showpost.ph...34&postcount=5

Anyways I know this does not help. Another idea is iron, have you checked everything which could leach iron to your system ? Any kind of rust on the pumps or anywhere else in the system ?

I am also not familiar with the Miracle mud, does the mud leach iron ?

G.Alexander
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  #49  
Old 09-24-2017, 06:19 AM
arringar arringar ¥Ø«eÂ÷½u
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I have tested for iron using the Red Sea pro iron test kit. It is extremely low. I am going to do a triton test to see if anything stands out.

I do not have any older pumps and no metal near the tank. If the triton test does not reveal something helpful I have no way to treat this. This algae grows faster and more aggressively than any GHA I have ever seen and I am totally helpless to stop it. I pluck it, I siphon it out, I don’t feed much, I don’t dose anything to cause it, I have perfect 0 tds RO/DI water, there are zero measurable nutrients but still it grows. No other algae grows except coralline.
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  #50  
Old 09-24-2017, 11:38 PM
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G.Alexander G.Alexander ¥Ø«eÂ÷½u
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It is really difficult to get rid of them males it not easier to not know the reason but I expect especially your rocks to have accumulated PO4 on its surface while the level in the water column is minimal. The algae pick it up from there directly. I have seen this often with tanks using PO4 absorbers and / or kalkwasser in the past.

Just regular scrubbing them off with a brush for a long period does help. To support this process you can additional dose 2 ml CoralSnow daily but this will not direct treat the algae.

G.Alexander
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