Can we get to the bottom of GDA? Turns out the cause was BGA so check it out! - Page 13 - The Planted Tank Forum
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post #181 of 183 (permalink) Old 10-08-2011, 04:38 AM
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No doubt GDA is an algae, along with many others.

But evidence of a symbiosis between cyano and GDA, along with finding out what I'll call "black spot" is really cyano, is interesting enough.

Thank you for the clarification and excellent pictures!

BGA is also easily reintroduced from another tank, even if you don't know you have it. For a while, every time I moved plants from my high-tech 46G to other, low-tech and less stringently maintained tanks, BGA appeared in the recipient tanks; even though there was zero visible evidence of BGA in the 46G. Treating all my tanks simultaneously took care of that, once and for all.
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post #182 of 183 (permalink) Old 10-08-2011, 04:51 AM
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Some of the old leaves have so much solid algae on them that it looks very dark almost black with red overtones. I was assuming that it was GDA with the dots all connecting.

Steve

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post #183 of 183 (permalink) Old 10-09-2011, 07:13 AM
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Quote:
Originally Posted by DarkCobra View Post
No doubt GDA is an algae, along with many others.

But evidence of a symbiosis between cyano and GDA, along with finding out what I'll call "black spot" is really cyano, is interesting enough.

Thank you for the clarification and excellent pictures!

BGA is also easily reintroduced from another tank, even if you don't know you have it. For a while, every time I moved plants from my high-tech 46G to other, low-tech and less stringently maintained tanks, BGA appeared in the recipient tanks; even though there was zero visible evidence of BGA in the 46G. Treating all my tanks simultaneously took care of that, once and for all.
You are welcome for the pictures. I thought those were awesome.

That would explain how I got it in one of my tanks. I had a heater in the 15 gallon and took it out as it was too hot for the summer right before treatment. I put it in another tank and I am noticing some cyano cropping up on the cord of the heater and the glass near it. Crud.

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Originally Posted by audioaficionado View Post
Some of the old leaves have so much solid algae on them that it looks very dark almost black with red overtones. I was assuming that it was GDA with the dots all connecting.
You know I am totally wanting to see any algae people care to send me, right?

Without Algae, death of mankind would be inevitable.
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