Purple stuff on rock??

The forum for puffers that either live or start in brackish biotopes: GSPs, F8s, Ceylons & more.
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Dan06
Dwarf Puffer
Posts: 60
Joined: Sat Oct 14, 2006 4:43 pm

Purple stuff on rock??

Post by Dan06 »

I have a large rock in my tank, over the course of the past couple weeks the top of it became jet black & this morning I noticed some purple stuff was growing on it...what in the world is it?

Water parameters are fine. Salinity is 1.0008
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RTR
Mentor
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Joined: Tue May 31, 2005 4:39 pm
Gender: Male
Location (country): East Coast, USA

Post by RTR »

May be BGA, blue-green algae, which comes in multiple colors from near-black to various reds and greens. If it feels slimy and breaks loose like a sheet when brushed, it is BGA.
Where's the fish? - Neptune
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DarkEntity
Figure 8 Puffer
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Joined: Tue Nov 28, 2006 4:08 pm
My Puffers: 1 x Carinotetraodon Salivator
2 x Tetraodon Biocellatus
Location (country): Scotland
Location: Glasgow(ish) Scotland

Post by DarkEntity »

Im assuming its not live rock you have used, this is purple where the "live" bits are.
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Dan06
Dwarf Puffer
Posts: 60
Joined: Sat Oct 14, 2006 4:43 pm

Post by Dan06 »

It is not live rock.

I should have mentioned it's not live rock, it is a manufactured piece.

It does not come off easily. It is definitely not any color other than purple, it has a 'crystal' appearance to it also.
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jake_vdb
Figure 8 Puffer
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Joined: Sat Aug 12, 2006 9:32 pm

Post by jake_vdb »

pictures?
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