Please help identify this algae

brentnorm

brentnorm

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This dark green algae has started growing recently. Can you please identify and help how I should get rid of it ?

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Brent, not seen that before, what are your perameters? and what are the perameters of your water change water?
 
I think the first step is to check your water change water, test the R/O, it needs to be zero TDS, then mix it with the salt and check for nitrates and phosphates and see what happens, also post the results.
 
Will do some water tests in the morning. Don't have a TDS meter so I will have to try and find one. Will post results as soon as I have them.
 
That looks a bit strange, is it not perhaps a type of encrusting sponge?
 
Does it feel "rubbery" - if so, it is most likely one of the Codium species, perhaps C. lucasii or C. pelliculare

These are not common in aquaria, as they don't usually do too well under very bright light (do you have MH?). Unless they start to encroach onto your corals, or over grow something which you like, I would suggest that you just leave it. Unfortunately, many people in this hobby consider algae to be "bad", but in fact algae are NATURAL and mostly beneficial, and can actually make a tank look much more natural.

Hennie
 
Reef Maniac said:
Does it feel "rubbery" - if so, it is most likely one of the Codium species, perhaps C. lucasii or C. pelliculare

These are not common in aquaria, as they don't usually do too well under very bright light (do you have MH?). Unless they start to encroach onto your corals, or over grow something which you like, I would suggest that you just leave it. Unfortunately, many people in this hobby consider algae to be "bad", but in fact algae are NATURAL and mostly beneficial, and can actually make a tank look much more natural.

Hennie
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Thanks Hennie.

I do not have a MH, only 4 T5's and I really don't mind leaving it except for the bit growing over and killing my zoas.
 
With your nitrate level as high as it is, and a positive phosphate reading, it's not surprising that you are experiencing algae growth - you really should do something to lower those readings.

Hennie
 
Reef Maniac said:
With your nitrate level as high as it is, and a positive phosphate reading, it's not surprising that you are experiencing algae growth - you really should do something to lower those readings.

Hennie
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Thanks Hennie. I was quite surprised when I did the tests. Gonna do a water change now.
 
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