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post #1 of 7 (permalink) Old 12-27-2003, 10:23 PM Thread Starter
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my tank is a week old my readings are ph 6.4 kh 6 phosphate0.50 and my nitrate is 5ppm now my anubis are getting covered in brown hair algae my aquarium is 4x2x18 with only 120 watts of light and i am using diy co2. do i need to up my nitrates to 10ppm and if so is that ok for fish and if i do how do i do it. should i stop using the c02?the plants are pearling like mad but do they really need it.sorry if going over old ground

mick
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post #2 of 7 (permalink) Old 12-28-2003, 01:32 AM
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Your nitrates and phosphates are great for a new tank, I would not increase their levels. Be patient with the algae, most new tanks go through periods of brown and green algae while finding their balance.

Something isn't right with your pH/kH measurements, what kind of pH test do you use? pH 6.4 and kH 6 just doesn't seem right, unless you use chemicals to buffer your pH down. A medium kH of 6 is usually associated with a higher pH around neutral (7-7.2).

CO2 is good for plant growth, which in turn suppresses algaes, which is what you want. So I would continue CO2 after figuring out that pH/kH thing. If the values you measured are true and you don't use any buffer/pH adjuster, your water would have ~70 ppm of CO2, which is too much. I suspect the pH test...
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post #3 of 7 (permalink) Old 12-28-2003, 02:59 AM
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WP is right on. Your phosphates and nitrates are fine, just give things some time to settle in and come into balance.

How heavily planted is your aquarium?

Mike

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post #4 of 7 (permalink) Old 12-28-2003, 05:24 PM Thread Starter
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my tank is really heavely planted but everyday the algae seems to be getting worse and worse do i have to let nature take it course.will.it get worse before it gets better.i will have to buy a new ph test kit

hixy
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post #5 of 7 (permalink) Old 12-28-2003, 06:03 PM
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If the tank is only a week old it's still too early for adding fish. In a few weeks you should measure ammonia and nitrites, and if both are zero, add two or three "cheap" fish. If they do fine after a week or two, it's time for the algae crew... a few Otocinclus catfish, some shrimps if they are available where you live, perhaps two or three siamese algae eaters. That should help getting algae under control.
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post #6 of 7 (permalink) Old 12-28-2003, 07:22 PM Thread Starter
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my tank set up is new but it was an old tank with cichlids in. the filter was mature .no amonia no nitrite and 5ppm nitrate. already got 3 corys 3 brittlenose plecs in the tank they seem to be doing a good job with the algae .ill have to see how it goes

hixy
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post #7 of 7 (permalink) Old 12-29-2003, 05:32 PM Thread Starter
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my tank looks great the brittles nose plecs have eaten all the algae :lol:
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