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#1
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Black beard algae problem
I believe this is the type of algae I have. Someone posted a picture of it
a while back, but I can't find the post. It is thin, stringy, black, and about 2" long. It is completely taking over my tank, and I am at a loss as to why. I thought I had a micronutrient problem, so I upped the dose of TMG. The plants are growing SO fast, that I wonder how the algae can keep up. My echinodorus bleheri was 5" tall a month ago. It is now 15" tall. I also have Hygrophila Rosanervig which I have to throw out about 6" a week. This dang algae is completely covering the echinodorus, the hygro, the java fern, and the java moss. I keep pulling out all the affected leaves, but it doesn't stop. The tank is a 20 gal, so I can't get any SAEs. ph - 6.6 kh -2 light - 55W PC on for 14 hours/day Any ideas? |
#2
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Black beard algae problem
ph - 6.6
kh -2 light - 55W PC on for 14 hours/day How's your nitrate? This is just anecdotal, but the last time I had BBA, I had let nitrate drop to zero. You've got almost 3 wpg, and I assume from your pH and KH that you're injecting CO2. You're adding PMDD, which is good, but you may also need to macronutrients like nitrate, phosphate, and potassium. Leigh http://www.fortunecity.com/lavender/halloween/881/ |
#3
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Black beard algae problem
How's your nitrate? I just tested, and yes, it is pretty low: 5mg/L. I've always had a tendency to overfeed so I hadn't considered that. Thanks very much. How often do you usually have to put in the Jobe's (palm/fern) spikes? I put half stick under the sword and half under the hygro about 2 weeks ago. Should I up that dosage? This is just anecdotal, but the last time I had BBA, I had let nitrate drop to zero. You've got almost 3 wpg, and I assume from your pH and KH that you're injecting CO2. You're adding PMDD, which is good, but you may also need to macronutrients like nitrate, phosphate, and potassium. Leigh http://www.fortunecity.com/lavender/halloween/881/ |
#4
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Black beard algae problem
"dGH" wrote in message ...
I believe this is the type of algae I have. Someone posted a picture of it a while back, but I can't find the post. It is thin, stringy, black, and about 2" long. It is completely taking over my tank, and I am at a loss as to why. I thought I had a micronutrient problem, so I upped the dose of TMG. The plants are growing SO fast, that I wonder how the algae can keep up. My echinodorus bleheri was 5" tall a month ago. It is now 15" tall. I also have Hygrophila Rosanervig which I have to throw out about 6" a week. This dang algae is completely covering the echinodorus, the hygro, the java fern, and the java moss. I keep pulling out all the affected leaves, but it doesn't stop. The tank is a 20 gal, so I can't get any SAEs. ph - 6.6 kh -2 light - 55W PC on for 14 hours/day Any ideas? CO2, CO2 and CO2. Try upping the CO2 and keeping at a higher level _consistently_. Dose some KNO3 etc also if the NO3 or fish load is low. Stay away from jobes sticks etc. Use KNO3, K2SO4, KH2PO4 and TMG for the nutrients. See DWF plant article on estimatibe index for dosing ideas. Regards, Tom Barr |
#5
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Black beard algae problem
My only concern is that with your micronuitriant and macronuitriant
(jobes, fishfood) fertilization that you are feeding the problem. If you do not have adequate plantage that cannot absorb all this fertilization, the algea will make hearty use of it. I might consider decreasing your inputs and nitrates to starve the algea. On Tue, 1 Apr 2003 08:48:31 -0800, "dGH" wrote: How's your nitrate? I just tested, and yes, it is pretty low: 5mg/L. I've always had a tendency to overfeed so I hadn't considered that. Thanks very much. How often do you usually have to put in the Jobe's (palm/fern) spikes? I put half stick under the sword and half under the hygro about 2 weeks ago. Should I up that dosage? This is just anecdotal, but the last time I had BBA, I had let nitrate drop to zero. You've got almost 3 wpg, and I assume from your pH and KH that you're injecting CO2. You're adding PMDD, which is good, but you may also need to macronutrients like nitrate, phosphate, and potassium. Leigh http://www.fortunecity.com/lavender/halloween/881/ |
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