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post #1 of 3 (permalink) Old 02-03-2010, 12:31 AM Thread Starter
Algae Grower
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what to use

Hi all....I have been battling off the worst case of green water you can imagine, so bad i could not see, and did not know if my fish were alive for three weeks, you couldn't even see 1 inch into the water..I started doing small water changes first and when it did not help i did larger changes eventually this killed my pleco(sad cause it was my first fishy pal).So i went and bought a new tank set it all up and used the filter from my paludarium that had already cycled, The substrate is a mix of black eco complete and black flourite, it is heavily planted. All was good-till i see the plants looking like they needed a boost. so i added some fertilizer then BAM 1 week later green water, knowing what was coming, i bought a uv sterilizer off ebay, by the time it got here i was looking into a pee soup tank. The uv filter worked like a charm. This is what i have for fertilizer given to me from a friend.
flourish comprehensive plant sup. 0.07-0.01-0.37
flourish excell
flourish potassium 0-0-5.8
nutrafin plantgro iron enriched containing trace elements 0.15-0-0

of these what should i use or not use(maybe a stupid question)also what else should i get. I'm only asking because i blaim my ferts:btw i am using diy co2 thank you
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post #2 of 3 (permalink) Old 02-03-2010, 12:42 AM
Planted Tank Guru
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How much light is there, and do you measure the CO2? DIY CO2 is usually a low level, but the Excel ought to help, too.

I have only gotten green water algae from really high light (direct sun).
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post #3 of 3 (permalink) Old 02-03-2010, 02:32 AM Thread Starter
Algae Grower
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my lighting is 2x15watt t5 nova extreme on a 20 gal tall tank. I do my best to keep up the co2 i do have a drop checker but i struggle to keep it at proper levels, as you say always low. but i was dosing with excell and i was not sure if it measured that so i didn't want to go overboard. As for sun, the tank is in my living room which has a large window facing almost true north but the tank itself is shaded by a large cabinet and only gets the indirect light which in winter is almost nothing. ???? and when there was no plants and i was not giving ferts the tank went two years with no issue.
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