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coltrref
02/18/2015, 07:09 PM
Sponge is changing color
when I arrived it was pink, then change to yellow and purple now, any reason?


https://farm8.staticflickr.com/7435/16388504660_ef60277f26_b.jpg (https://flic.kr/p/qYcntb)_DSC0045 (https://flic.kr/p/qYcntb) by alejandrosahuaya (https://www.flickr.com/people/[email protected]/), on Flickr

garygonzales
02/21/2015, 09:48 AM
looks like it could be dying...did you let it touch air..i heard that would do it...

noy
02/22/2015, 07:16 AM
it looks like bacteria - maybe even some form of cyano. not sure how much you can do about it. does it flake off?

coltrref
02/26/2015, 01:16 PM
looks like it could be dying...did you let it touch air..i heard that would do it...

not still alive.
have not touched their air.

coltrref
02/26/2015, 01:23 PM
it looks like bacteria - maybe even some form of cyano. not sure how much you can do about it. does it flake off?


maybe some answers are found for this article: http://www.advancedaquarist.com/blog/bacteria-in-sponges-harvest-phosphate-clarifying-reef-waters

the question is: is it possible that phosphate is involved in changing color?

theory could be that other corals a range of phosphate amending color.
over-fertilization of zooxanthellae modify it, but in this case?

soon I upload another current image

coltrref
03/02/2015, 06:22 PM
https://farm9.staticflickr.com/8641/16076330403_16f51075ca_b.jpg (https://flic.kr/p/quBoWp)esponja pink (https://flic.kr/p/quBoWp) by alejandrosahuaya (https://www.flickr.com/people/[email protected]/), on Flickr

today

https://farm9.staticflickr.com/8616/16670205336_6eb19e7c27_b.jpg (https://flic.kr/p/rp6ago)_DSC0006 (https://flic.kr/p/rp6ago) by alejandrosahuaya (https://www.flickr.com/people/[email protected]/), on Flickr

gogo7
03/06/2015, 11:41 PM
what're you feeding it?

Puffyluv
03/07/2015, 05:53 AM
Doesn't look photosynthetic...probably too much light, not enough flow and food?