which algae?

[yme]

dear all,

I seem to have some kind of algae/bga/gda infestation in my tank. the problem is that I do not really know what it is. on leaves, it feels a bit slimy and it can be partially be rubbed off. when you do that in a bowl, you get green water. it also grows on the flourite black as well as on the glass. within 2 days I see a film of this algae.....
It does not seem to be green dust algae since I was on vacation for 3 weeks: the glass was covered with this algae, I removed it after the 3 weeks together with big waterchanges, but within 2 days it was already growing again. So, nothing of this 3 week cycle which seems to be a popular method to get rid of gda.

any idea??




greets,

yme

 

[yme]

come on guys! no reactions??

any way,

I grew some algae within 3 days on a coverslip that I placed in the tank. then, I took some pictures with a microscope:

greets,

yme

 

[VaughnH]

Wow, from your first post I would say it is green dust algae, which can take more than one 3 week growout attempt to get rid of. Surely that microphoto will enable some of the experts to identify it exactly. If Tom is back, I'm sure he can do so.

 

[yme]

oewh! tom writes..... he is back!?

in any case, according to the "all knowing internet", gda seems to be a Ankistrodesmus species. when I google I only find needle shaped structures. very different from mine. So no GDA?

Any way, I thought to give it a bump... (and tom sees my post sooner...)

thanks anyway VaughnH!

greets,

yme