Algae on LR

[roy81]

Hi All,

I have these greenish stuff on my LR. I recently manage to bring down my po4 to 0.03. However nitrate is still at 10.

Anyone can advice what should do to remove the algae?

My parameters are:

No3 10

Po4 0.03

Ca 420

Kh 800

Mg 1170

Temp 26deg

Salinity 1.025

Would appreciate your kind advices

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[Fjdam]

How long is ur light period? Try reduce it or black out for 3days.. it helps abit..

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[roy81]

Ard 8-9 hours daily. Do i need to dose anything to aids the black out period? Would the blackout affect for corals and livestocks?

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[JMW]

If not having dinos, a black out is not necessary. Reducing the photoperiod will help. Can do some WC to help further reduce nitrates.

doesnt look like hair algae or bryposis? Clearer pic would help. So it may be regular green algae which snails can help eat off. Astreas, turbos can help.

[roy81]

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[roy81]

Are these pics ok?

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[roy81]

Do i need to dose some kind of algae remover while on a blackout or lower period of photo period?


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[kohanson]

Try to raise your light higher, reduce lighting period and lower the intensity of the light if possible. I also have these greenish algae like turf on my rocks and managed to reduce greatly by reducing the lightings by 1 hour from 8 to 7 hours. I have also raised my light by about 10 cm higher. After that, I introduced one long spined urchin and 2 snails and they slowly cleaned up the rocks over a period of 2 - 4 weeks.  

[roy81]

I unable to raise my lights. As for intensity, currently my china led light setting is 20% white, 100% blue. Would lowering intensity be of impact to my corals? As for cleaning crew, i have 1 sea hare, 1 turbo snail, 1 nazarrus snail, 2 sand shift star.

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[nasotang]

Try purchasing tuxedo urchins.  They're reef safe and look cute and scrape/eat algae right down to the bare rock

[roy81]

Noted. Thanks for advice.

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[sherman]

U have skimmer? Wet skim will help

Your PO4 reading is taken by Hanna Ultra low Phos

or normal test kit

[roy81]

Po4 is using salifert test kit. Yes i'm using a skimmer with the opening fully open.

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[haji_das]

Magnesium abit Low bring up to 1300


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[roy81]

Have brought up to 1410 throughout 3 days.

Now the setup - lights 10% white, 60% blue.
Water parameters -
No3 10
Po4 0 - 0.03
Kh 9.3
Ca 400
Mg 1410
Sal 1.025
Temp 26 - 27deg



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[roy81]

Other than the tux urchin, any others that will clean up for me?

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[finind]

tux urchin can also be "temperamental" ... not sure when it starts to be interested in the green algae again ...sigh 

about 2 months ago almost wanted to give up my 1 ft nano tank as the alage has invaded all LR and sandbed ... maybe I got lazy and did not housekeep as often.

before tearing the tank down I decided to clean up everything to give it a last chance. Sekali I noticed the urchin started to clear up the algae.

So I got motivated and started to clean the tank more often and suck up the green stuff on the sand bed. Planning to remove all the sand if it didn't help.

But lately the algae on the LR started to grow longer again... and the urchin is not eating. Strangely there is a small portion of the LR where the green algae got very thick become dark green color and the urchin clear it up 

Bought a zebra urchin (I think so) but doesn't help. 

My tank is special ...   ... no fish, just some mushroom and skin polyp and 3 urchins. As budget and self sustain as possible. As long as it looks clean and tidy and the animals proven to be able to survive. 

No feeding. Only carbon and Phosguard in the sump. Use distill water from supermarket. 

wonder if my blue light is too cheapo ... actually is in the process to "upgrade" to LED bulb from China 

Edited March 29, 2020 by finind

[finind]

while trying to get ideas on what else can help with the GHA, recalled I used to have the electric blue leg hermit crab  

quickly make a trip to LFS to pick up 2 hermit crab and 1 electric blue.

first night no action. Seems like started working on the second day  . Noticed some reduction of GHA on one of the liverocks.

Will give them a week to see how things go before I consider Flux RX. 

[finind]

after more than a week, finally the GHA is reducing 

glad the hermit crabs are helping too. 

will not use Flux RX unless GHA wild spread again. 

Will let the urchin and hermit crabs slowly nibble on the remaining GHA

[finind]

GHA mostly clean up by the crews 

what to feed them with now? 

[soggycookies]

GHA mostly clean up by the crews 
what to feed them with now? 

just cut up some shrimp into small pieces and add to the tank but make sure it sinks so the hermits can get it before it goes into the filtration


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[Subbu PD]

Tried black out for 3days?

[Franzax]

Could try vibrant good product but costly .

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