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Green stringy algae and what to do about it
Hi,
My PH ranges from 7.1 early AM to 6.8/6.9 when the lights go off. My KH is 4 degrees. Looking up the chart, if I read it correctly, I'm at or near ideal CO2 levels. As to the stocking of my tank: 3 Clown Loaches (~3 inches each) 16 Cardinal Tetras 6 Glow Light Tetras A 'mess o' Ottos 2 False SAEs (~1.5 inches each) 6 True SAE's (~1 inch) 3 Sting Ray Plecos. It's a 55 Gallon Tank. The tank is densely planted with easy plants (Bacopa, Sunset Hygro, Java Ferns, Rotala, and a couple of Crypts. I'm vacuuming lots of plant debris each week. I've only just started to use tap water. It was RO before that. I'm now mixing about 50/50 RO to tap on changes. "LeighMo" wrote in message ... I did some testing for the first time in a long time last night. As you (plural) suspected, My Nitrates and Phosphates were high - Nitrates = 22 ppm and PO4 1+ ppm. I do weekly water changes of 25-30%. That's not so bad. Remember, your plants need some nitrate and phosphate in the water. However, I would expect nitrate to be under 20ppm if you're changing 30% a week. Is your tank heavily stocked? Or maybe there's nitate in the tapwater? I wouldn't use chemical removers. And I wouldn't worry about that level of phosphate. A lot of people blame phosphate for algae problems, but I have 40 ppm of phosphate in my tapwater, and no algae problems, in planted or unplanted tanks. I have 4x40 watt flourescents on my 55 gal tank and I inject CO2 (if that matters). What are your CO2 levels? Do you know your pH and KH? Leigh http://www.fortunecity.com/lavender/halloween/881/ |
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