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help for my hammer

alexgo310038

By alexgo310038,
in LPS Coral forum

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alexgo310038 Contributor

alexgo310038

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good morning guys i need help.

i do not know why my hammer is bleaching. :cry2:

i have a 4 x 2 x 2 using 2 x 250 MH. water par is still good.

cal at 450

no3 at 5 ppm

akl at 8.5

temp at at 25 c

salty is 1.025.

it start to bleaching about 2 weeks ago. :ph34r: now it is almost 1/4 bleached. :sick:

any one know what happen???? i will try to post a photo of it later to night.

here is a photo of it B4 it start bleaching

Thanks

post-3892-1221012298.jpg

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alexgo310038 Contributor

alexgo310038

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How far from your MH is the hammer? Maybe the light is too strong.

Your Alk is on high side, should aim for 8.2-8.3. You just bought the hammer or its already in your tank for quite some time?

hi bro the hammer is at the bottom of the tank. and i have it for more than 3 moth liao.

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alexgo310038 Contributor

alexgo310038

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250W MH is too strong for most LPS......if possible n u not keeping sps, going for 150W or T5 enuff liao

hi bro thanks for the advised. i do kept SPS. thats why i am using 250W. if thats the case i may have to sell it away. cause i am thinking of upgrading 250 to 400W :nuke: as i just got a table arco and a superman moti.

by the way i am in china. :lol::bow:

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[V]tEc Newbie

[V]tEc

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hi bro thanks for the advised. i do kept SPS. thats why i am using 250W. if thats the case i may have to sell it away. cause i am thinking of upgrading 250 to 400W :nuke: as i just got a table arco and a superman moti.

by the way i am in china. :lol::bow:

400W u will soon have a white hammer. lol..........

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TayHongSiang Newbie

TayHongSiang

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lighting is ok. It is how you acclimate it.

Refer to this link: http://www.uvi.edu/coral.reefer/bleach.htm

Corals bleached is not only caused by strong lightings alone.

Dose zooplankton / phyplankton shd be fine. And place them in low / moderate currents.

Most Hammers are found in shallow waters in their natural habitat. You can imagine the sunlight hitting on them and the amt of UV they are exposed to, in their natural environment.

l7304smr.jpg
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