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-   -   Green/black spot algae? (http://www.plantedtank.net/forums/showthread.php?t=84750)

fennijm 03-23-2009 11:24 PM

Green/black spot algae?
 
I've had a planted tank for 2 years or so. It's somewhat low light, 64 watts of T8 light over a 55 gallon with a homemade CO2 injector. I have had great growth in all my plants, with of course, periods of up and down, mostly due to my negligence. I am including a picture of a problem I have had all the time. This black spot algae, which doesn't scrape off, it always leaves marks behind. My thought is that it is green spot algae turned black. What do you think it is? What would be my best way of combating it? Thanks.
http://www.bbcpa.org/abf/connections/leaves.jpg

audesch 11-30-2012 04:24 AM

Hey I am also in the same boat as you with no success growing plants. The exact same thing happening to me. Tank has been set up around 2 years. I have a 41 gal tank with 130 watts CFL using pps-pro method for fertilizer. My water perimeters are perfect.
GH 7
KH 5
NO2- 5
NO3 - 0
PH 6.6
I am trying to reduce the light it was going for 8 hours now i have it on for 7. Im about to give up because it really sucks when all your plants have this problem.


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