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Help needed corals dying!!


Deron Ng
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Hi some information recently change to pharos led from normal t5s..

Water para constant no issue..

Lights peak at 40% blue and 20%white..

No more algae growing on glass which could be low in light or nutrients..

Corals all shrunken and look like dying..

Any advice/help from lps seniors..

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It seems like the lower the intensity the worst it gets? And after I change to led no more algae growing on glass.. But den again I am afraid to tune up the lights.. Btw I have a missing blenny dunno died inside or not.. So what you think bro?

Give them some time to readjust. No more algae growing could be lights are set at low level.

What are your kh, ca, mg and sg? Your tank is fairly new and the water might not be stable for the corals yet. And how often do u do a water change?

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Kh at 7.6

Ca at 390

Mg at 1400

Ph at 8.2 to 8.3

Never change water for 2 week alrdy.. Just dosing..

Feeding a lot but no algae.. Read online that lps cannot survive under low nutrients level..

Currently I turn off po4 and bio pellets.. Only running skimmer and trying to feed more..

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Never Chk nitrate.. But assuming from no more algae even on the liverocks.. It's probably very low or even none.. Currently I switching off my reactors and see how it goes.. Slowly increasing lights as well..

Lost some to torch heads and a missing blenny

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No algae equals no nitrate is a bad assumption. Algae probably not growing due to light change, they thrive on lower (red) spectrum. Will take time to reestablish.

As other people have stated, you need a stable tank. How "slowly" are you increasing the lights? If none of the animals are rapidly dying, I would leave the lights as is, and increase gradually once a week only. Due to the different opinions here, both saying increase and decrease, I would aim for a stable tank and observe the animals closely.

Also, your alkalinity and calcium appear low.

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  • 1 month later...

Increase your light weekly by 10 - 15 % should be ok. Your KH is very low. Bring it up slowly

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 weeks later...
  • 3 weeks later...
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yeap flow is impt i didnt realise untill i adjust n adjust till got it right. i think lps is a must to be fed. no need direct feeing broadcast also can. they got mouth so must eat since they cannot talk

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