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  #1  
Old 09-07-2017, 02:04 PM
Johnsons reef Johnsons reef 目前離線
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Default Odd spots of bleaching

Sorry if this should be in the coral section but im getting random spots of bleaching on a couple of sps still good pe but colour loss in different spots on the corals any ideas what could be causing this? Just checked the vitals
Kh 8.6
Cal 450
Mag 1200 bit low
Potassium 390

Recently changed all the bulbs in my t5 unit and colours have been loads better but otherwise no changes
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  #2  
Old 09-08-2017, 02:13 AM
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G.Alexander G.Alexander 目前離線
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Might it be acropora eating tissue flatworms ?

Can you post some closer pictures of the affected areas of the corals ?

G.Alexander
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  #3  
Old 09-08-2017, 02:15 AM
Johnsons reef Johnsons reef 目前離線
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I'll try and get some pics when I get home from work but it doesn't look like tissue loss just colour loss still pe on the affected areas
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Old 09-08-2017, 03:10 AM
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G.Alexander G.Alexander 目前離線
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If corals are infected with flatworms they do loose tissue slowly getting lighter and on some areas can show bare skeleton while PE is still good. It can also have a different reason but this is the first thing I would rule out.

G.Alexander
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  #5  
Old 09-11-2017, 11:27 AM
Johnsons reef Johnsons reef 目前離線
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This is the best pic I could get. After looking online I think your right with the flat worm so dipping the corals every 3 days
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  #6  
Old 09-12-2017, 01:55 AM
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G.Alexander G.Alexander 目前離線
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Thank you for the picture but I can not see it really clear but it might indeed some kind of pest, looks like bite marks from tissue eating flatworms. You might take a closer look for their eggs or dip the coral to see if something is coming off.

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