Help needed corals dying!!

[Deron Ng]

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..

[Deron Ng]

[FuEl]

Light shock probably, cut down on light intensity & duration.

[Deron Ng]

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?

[[V]tEc]

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?

[Deron Ng]

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..

[spgohjc]

What's your nitrate?

Check if any corals is already dead or dying.

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[Deron Ng]

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

[blusafe]

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.

[Anthony]

Prata is 1 of the easiest to survive in a aquarium. Check ur NO3 level. It look stress. Is there any angel or butterfly in ur tank?

[Deron Ng]

Ok will chk the no3 later tonight..

No angles or butterflies..

Lights will increase accordingly and will look at the reactions of the corals.. Nothing is dying rapidly that is for sure..

[Deron Ng]

Guys thanks for the advice I think you guys are right.. My po4 levels are way above at 0.25ppm nitrates at 1ppm.. May I know what are the acceptable range for lps?

[kraken]

your nutrients levels are very bad for sps, for LPS, its acceptable, have to be your light intensity or rather, lack of intensity. pump up the lights gradually

[Deron Ng]

I suspect not enough lighting.. Now I increase the intensity all look better already.. And water para back to norm.. Must remember change the rowa next time

[Deron Ng]

Can any bro advise how can we tell if the corals are starving.. Now my corals open very well in the day.. But after the whites tune down only left with the blue they don't look good.. Some shrink to the skeletons

[kraken]

LPS 'close' up in the absence of lights, google it and you will realise it is extremely normal.

[SeahSengYong]

How your tank doing now?

[Deron Ng]

Slowly but surely improving.. I think

[sherman]

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

[Fukcable Fcuker]

How to bring up the KH ?

[blackcell]

What dosing do you use ? What about wave flow ? This is very important..

Do you smell what my tank is cooking..

[artxakis]

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