strange algae growing on discosoma

pirsquared · 09/09/2010, 08:08 AM

this microalgae appeared at about the same time as a cynaobacteria outbreak in the tank, this was successfully controlled by removal and a reduction in the hours of light. Then i noticed a growth on one of the discosoma, at first i thought it was some sort of sexual growth on the part of the discosoma but i cant find any info regarding this.

i removed the piece of live rock from the tank and noticed it was attached to the rock not the discosoma, it is soft and gelatanous to the touch but also ridgid (its keeps its upright shape when out of the water).

after a rapid spurt of growth it now appears to have stopped growing. should i leave it alone or harvest it?

thanks
paul[ATTACH]

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shutiny · 09/10/2010, 09:30 AM

I have one in my tank, they are ok, not invassive at all. With MH, they get this orange/red neon colors, really nice.

pirsquared · 09/15/2010, 10:22 AM

thanks for the reply, i'll leave it alone and perhaps propogate the discoma away from it as they don't appear to be thriving like they were before the algae arrived.

johnmaloney · 09/16/2010, 07:36 AM

might be getting in their way, but it looks cool. maybe a halymenia species?

shutiny · 09/16/2010, 03:42 PM

Hi John,

I don't think the one I have is one of the Halymania species. It has a different consistency to touch. Halymania is slimy, this one is less so and it feels like "paper" when rubbing the leaves.

pirsquared · 09/17/2010, 06:20 AM

this one is a single frond, all the pictures of the halymenia sp i can find descibe it as having several flat flexible fronds, and this one is quite ridgid, keeping its cup like shapoe evn out of the water.

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09/10/2010, 09:30 AM	#2
shutiny Premium Member Join Date: Jan 2003 Location: Pacific Grove, CA Posts: 917	I have one in my tank, they are ok, not invassive at all. With MH, they get this orange/red neon colors, really nice.

09/15/2010, 10:22 AM	#3
pirsquared Registered Member Join Date: Sep 2010 Posts: 3	thanks for the reply, i'll leave it alone and perhaps propogate the discoma away from it as they don't appear to be thriving like they were before the algae arrived.

09/16/2010, 07:36 AM	#4
johnmaloney Registered Member. Join Date: Nov 2007 Location: Florida Posts: 351	might be getting in their way, but it looks cool. maybe a halymenia species?

09/16/2010, 03:42 PM	#5
shutiny Premium Member Join Date: Jan 2003 Location: Pacific Grove, CA Posts: 917	Hi John, I don't think the one I have is one of the Halymania species. It has a different consistency to touch. Halymania is slimy, this one is less so and it feels like "paper" when rubbing the leaves.

09/17/2010, 06:20 AM	#6
pirsquared Registered Member Join Date: Sep 2010 Posts: 3	this one is a single frond, all the pictures of the halymenia sp i can find descibe it as having several flat flexible fronds, and this one is quite ridgid, keeping its cup like shapoe evn out of the water.