ad-button
Reply
 
LinkBack Thread Tools
Old 08-17-2008, 02:44 PM
  #1
Astrea Snail
 
Share-Reef's Avatar
 
Join Date: Jun 2008
Location: Central, FL
Posts: 40
Skin: Mint
Karma: 80
Share-Reef is moving on up!


 
gallery
Question Acropora frag bleaching

Hi guys,

I bought this acropora frag this weekend at an LFS out of town. I did not notice until on the way home that it was bleached on the back side. And, they didn't bother to tell me. Anyway, since I have gotten it home I have fragged a couple limbs off of it. It had began to spread onto its frag plug so I left that part there and took what was left of the bleaching part that I didn't frag and left in the tank. Is there anything else I can do, as most of my purchase appears to have gone down the drain? It is a blue acropora.
Share-Reef is offline   Reply With Quote Top
 
Click Here!
Old 08-17-2008, 04:17 PM   #2
Giant Squid
 
coral reefer's Avatar
 
Join Date: Jan 2006
Location: Wonderland
Posts: 4,860
Skin: Dark
Karma: 32681
coral reefer has a reputation beyond reputecoral reefer has a reputation beyond reputecoral reefer has a reputation beyond reputecoral reefer has a reputation beyond reputecoral reefer has a reputation beyond reputecoral reefer has a reputation beyond reputecoral reefer has a reputation beyond reputecoral reefer has a reputation beyond reputecoral reefer has a reputation beyond reputecoral reefer has a reputation beyond reputecoral reefer has a reputation beyond repute


contributor 
3link 
gallery
Default

Ok, I will try to explain this scenario to you as simply as I can without getting to verbous.
Many stony corals, you will find, have a bleached or somewhat subdued appearance on the underside of the branches etc. as a direct correlation with subdued lighting. The employment of a dark colored substrate will only increase this scenario unfolding. A white or light colored substrate will help to reflract the light from your lights back up to offer the zooxanthellae(symbiotic corals) in your stony corals beneficial light where the light is normally not as strong. Possibly try repositioning your Acropora within your tank!
This can be compared simply to how burnt we get by standing in water as the suns rays deflect off the water's surface. Also, if you have ever gone snorkeling and wonder why your face gets burned, again it is a result of the sun's rays bouncing off the surface of the water.
This can be taken one step further and directly correlates to the fact that the deeper the water depth, the less of the spectrum from lights or the sun is able to penetrate below, hence the reason the ocean looks blue to dark blue with depth. The spectrum of light starting with the red then orange and yellow becomes refracted back as the water depth increases!
coral reefer is offline   Reply With Quote Top
Old 08-18-2008, 07:47 AM   #3
Astrea Snail
 
Share-Reef's Avatar
 
Join Date: Jun 2008
Location: Central, FL
Posts: 40
Skin: Mint
Karma: 80
Share-Reef is moving on up!


 
gallery
Default

I am not sure what kind of lighting the frag was under before I bought it, but it is under a 250w MH in my tank. Where should I put it? I am attempting to post pictures once I figure it out. I have them in my album but haven't figured out how to get them in this thread yet.........
Share-Reef is offline   Reply With Quote Top
Old 08-18-2008, 08:48 AM   #4
Giant Squid
 
schackmel's Avatar
 
Join Date: Jun 2008
Location: St. Louis
Age: 41
Posts: 3,144
Skin: Mint
Karma: 19066351
schackmel has a reputation beyond reputeschackmel has a reputation beyond reputeschackmel has a reputation beyond reputeschackmel has a reputation beyond reputeschackmel has a reputation beyond reputeschackmel has a reputation beyond reputeschackmel has a reputation beyond reputeschackmel has a reputation beyond reputeschackmel has a reputation beyond reputeschackmel has a reputation beyond reputeschackmel has a reputation beyond repute


contributor 
 
gallery
Default

A couple things I was told:
1. with MH lights you really need to light acclimate your corals unless you know specifically what type of lighting they were under, or else they will bleach out. You start at the lowest part of the tank, leave the light off for the first day, then turn it on for a couple hours next day, increase it a couple hours next day and so on until you have full day. You then gradually move the coral to where you want it in your tank.
2. Many acros are bleaching for some reason globally. Somebody told me this, and honestly I can not remember what he said the reason was...but it is a very common thing that is happening. I will try to look it up and repost..but it is very common.

If you just bought it this weekend, I would try to talk to the LFS and see if there was anything they can do...because they should have seen that it bleached out in the back...they strategically placed it so you could not see it more then likely!
schackmel is offline   Reply With Quote Top
Old 08-18-2008, 08:49 AM   #5
Giant Squid
 
schackmel's Avatar
 
Join Date: Jun 2008
Location: St. Louis
Age: 41
Posts: 3,144
Skin: Mint
Karma: 19066351
schackmel has a reputation beyond reputeschackmel has a reputation beyond reputeschackmel has a reputation beyond reputeschackmel has a reputation beyond reputeschackmel has a reputation beyond reputeschackmel has a reputation beyond reputeschackmel has a reputation beyond reputeschackmel has a reputation beyond reputeschackmel has a reputation beyond reputeschackmel has a reputation beyond reputeschackmel has a reputation beyond repute


contributor 
 
gallery
Default

sorry, missed the part that it was out of town
schackmel is offline   Reply With Quote Top
Old 08-18-2008, 09:52 AM   #6
3reef Sponsor
 
Tangster's Avatar
 
Join Date: Aug 2006
Location: Va/Ct
Posts: 5,646
Skin: Mint
Karma: 40947
Tangster has a reputation beyond reputeTangster has a reputation beyond reputeTangster has a reputation beyond reputeTangster has a reputation beyond reputeTangster has a reputation beyond reputeTangster has a reputation beyond reputeTangster has a reputation beyond reputeTangster has a reputation beyond reputeTangster has a reputation beyond reputeTangster has a reputation beyond reputeTangster has a reputation beyond repute


 
gallery
Default

Quote:
Originally Posted by Share-Reef View Post
Hi guys,

I bought this acropora frag this weekend at an LFS out of town. I did not notice until on the way home that it was bleached on the back side. And, they didn't bother to tell me. Anyway, since I have gotten it home I have fragged a couple limbs off of it. It had began to spread onto its frag plug so I left that part there and took what was left of the bleaching part that I didn't frag and left in the tank. Is there anything else I can do, as most of my purchase appears to have gone down the drain? It is a blue acropora.
Is it Bleaching problem or RTN that is going on ? If Bleaching then more light and it will color up in a few months if its a condition called RTN = {Rapid Tissue Necroses} , a iodine dip may help knock the infection out ? I always dip a coral experiencing a RTN problem .
Tangster is offline   Reply With Quote Top
Old 08-18-2008, 10:51 AM   #7
Finback Whale
 
reef_guru's Avatar
 
Join Date: Apr 2007
Location: joliet,il
Age: 46
Posts: 2,726
Skin: Mint
Karma: 96170
reef_guru has a reputation beyond reputereef_guru has a reputation beyond reputereef_guru has a reputation beyond reputereef_guru has a reputation beyond reputereef_guru has a reputation beyond reputereef_guru has a reputation beyond reputereef_guru has a reputation beyond reputereef_guru has a reputation beyond reputereef_guru has a reputation beyond reputereef_guru has a reputation beyond reputereef_guru has a reputation beyond repute


3reefer 
 
gallery
Default

is there a way to find out the lfs's water parameters and the par rating of their sps tanks? many lfs's dont have good water quality and when you take it home to a better enviroment things go hay wire. can you check your parameters and your par rating? acclimation is a must. also piggy back on what tangster stated.
reef_guru is offline   Reply With Quote Top
Old 08-18-2008, 05:35 PM   #8
Astrea Snail
 
Share-Reef's Avatar
 
Join Date: Jun 2008
Location: Central, FL
Posts: 40
Skin: Mint
Karma: 80
Share-Reef is moving on up!


 
gallery
Arrow

http://www.3reef.com/forums/members/...-100-1475.html

Ok, here is a link to my acro frag picture as well as its placement in my tank. I am assuming that they did strategically place it so I didn't notice the back was white.

Tangster ~ can you tell if this is that infection you were talking about?

What should I do now? Move it lower? Iodine dip?

Last edited by Share-Reef; 08-18-2008 at 05:41 PM. Reason: Trying to post picture
Share-Reef is offline   Reply With Quote Top
Old 08-19-2008, 08:57 AM   #9
Finback Whale
 
reef_guru's Avatar
 
Join Date: Apr 2007
Location: joliet,il
Age: 46
Posts: 2,726
Skin: Mint
Karma: 96170
reef_guru has a reputation beyond reputereef_guru has a reputation beyond reputereef_guru has a reputation beyond reputereef_guru has a reputation beyond reputereef_guru has a reputation beyond reputereef_guru has a reputation beyond reputereef_guru has a reputation beyond reputereef_guru has a reputation beyond reputereef_guru has a reputation beyond reputereef_guru has a reputation beyond reputereef_guru has a reputation beyond repute


3reefer 
 
gallery
Default

par? Ca? dKH? Mg? temp? salinity? tanks internal water flow?
reef_guru is offline   Reply With Quote Top
Old 08-19-2008, 10:33 AM   #10
Astrea Snail
 
Share-Reef's Avatar
 
Join Date: Jun 2008
Location: Central, FL
Posts: 40
Skin: Mint
Karma: 80
Share-Reef is moving on up!


 
gallery
Default

My tank readings are Ca 460, dKH 10, pH 8.2, Mg 1160, Phosphate ~ Nitrate ~ Nitrite ~ Ammonia all = 0, Temp 82 (Mid day), Sal 1.025

I don't know what the par rating is or how to find it or how to determine the internal water flow. I have 2 korillia 4's (one in each corner), 1 korillia 1 (center), and the 120 gallon tank is powered by a Mag 12. Is that enough flow?

One thing I didn't do what light acclimate the coral. Retrospect, I messed up. Also, it hasn't bleached since I got it. I noticed it on the way home from the LFS, so I got ripped....I did do the iodine dip during acclimation, before putting it into my tank. I have since moved it down to the lower 1/3 of my tank but still under the MH.
Share-Reef is offline   Reply With Quote Top
 

Click Here!

Reply

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Monti Frag mudguard2005 SPS Corals 9 08-17-2008 04:57 PM
My corals are bleaching?????? MagReef ASAP 24 06-01-2008 06:00 PM
diy frag plugs cheap tazzy695 I made this! 6 04-06-2008 11:01 AM
Bleaching montipora digitata? m_lacom99 SPS Corals 13 10-30-2006 06:07 AM
Positive Feedback For Reefer Jerm and his frags! Chris Jones General Reef Topics 10 07-01-2005 02:23 PM

Join 3reef Aquarium Forums