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Algae on LR


roy81
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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

af61de28f772d2077f647571f96aa9a6.jpg

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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.

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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.  

Tank: 3.5ft x 2ft x 1.5ft, 12mm

Sump: 3ft

Skimmer: Bubble Magus Curve 7

Lightings: Maxspect 15000k

Return Pump: Eheim 1252

Wavemaker: Jebao WP25, Jebao RW-8

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U have skimmer? Wet skim will help

Your PO4 reading is taken by Hanna Ultra low Phos

or normal test kit

6.5 * 2 * 2 + 3.75 * 1.5 *1.5,(Decomn on 14/9/08)
4*2*2 + 2.5*1.25*1.25 (Decomn on 1/8/09)
5*2*2 (Fully LED light system, 140 3 watt SSC leds with 60 degree lens)(Decomm)
2.5*2*2(Fully LED Light System,96 3 watt SSC leds with 60 degree lens)(Decomm)

5*2.5*2(LED only)

Eheim return 1 * pump

1 HP Daikin compressor with cooling coil
2 Jebao OW40, 1 ecotech MP40,
1X6085 Tunze wm,

1 CURVE 7 Skimmer

  1 DIY 80 led control by Bluefish mini 

1 radion XR30W G2, 2 Radion XR15G3

Sump area lite by 5 ft T5 , 6 * SSC 3 watt red LED for refugium

1 Full spectrum E27 led light

1 CR control by bubble count

Start No Water Change since 1st Dec 2016

Add new 2.5x2x 1.5 ft 

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  • 3 years later...
  • SRC Member

tux urchin can also be "temperamental" ... not sure when it starts to be interested in the green algae again ...sigh :cry2:

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 :erm:

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

My tank is special ... :D  ... 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 :D

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

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 :yeah: . 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. 

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  • 2 weeks later...
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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

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  • 3 weeks later...
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GHA mostly clean up by the crews :yahoo:
what to feed them with now? :shock:

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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