Whats the goal - No algae at all?? - Fertilizing - Aquatic Plant Central

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Old 01-28-2008, 09:36 AM   #1 (permalink)
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Default Whats the goal - No algae at all??

A question for all the pros out there!! I have a high tech, 29 gal, heavily planted tank. I feel I am doing everything just about right including fertilizing w/ EI. CO2 inj w/ 30ppm via drop checker, 4wpg, 10hr photoperiod, weekly water changes, good water parameters, and the plants are growing like nuts, have to trim them weekly......but I still have a lttle bit of algae in the tank?? Nothing too bad, but a light dusting on the glass and the dwarf grass and microsword has some bba on it. Is this normal or should I be able to have no algae anywhere?? Any suggestions on what to change?
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Old 01-28-2008, 11:00 AM   #2 (permalink)
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Default Re: Whats the goal - No algae at all??

If you make it a routine habit to change water and do a thorough tank cleaning once a week, including wiping down or scraping all of the glass, and cleaning all hardscape, then the light dusting on the glass will not be an "algae problem" for you. If you make sure you keep up with pruning so excessive plant growth doesn't cause dead spots in the tank, where water doesn't circulate well, then you should be able to control BBA too, so that won't be an "algae problem" for you.

When you use 4 watts per gallon of light you just have to accept that algae will appear every single time something goes slightly wrong with the tank - the CO2 level, the circulation, the tank cleanliness, the filter cleanliness, etc. Cutting that light intensity back to just over 2 watts per gallon will make it a lot easier on you.
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Old 01-28-2008, 02:26 PM   #3 (permalink)
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Default Re: Whats the goal - No algae at all??

On a side note Hoppy (sorry to highjack the thread) what do you use to wipe your tanks down with?

I've always used non colored/printed paper towels in the past but recently I got a few packets of
API's tank wipes for free so I used them on a small 12gallon tank and they worked very well and
didn't smell like a household cleaner.

- Brad
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Old 01-28-2008, 05:22 PM   #4 (permalink)
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Default Re: Whats the goal - No algae at all??

If you have green dust algae, almost anything will work to wipe it off. But, if you have green spot algae or a mix of the two, you have to scrape it off using a credit card or steel blade. At least, that has been my experience. So, being blessed with the mixture, I use a credit card.
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Old 01-29-2008, 01:17 PM   #5 (permalink)
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Default Re: Whats the goal - No algae at all??

I generally only get green dust algae on the sides of the tanks so I use paper towels but
I'm thinking about buying a box of the API wipes just to see how much better they are.

The upside to them is I can put them directly into the tank without them becoming
extremely water logged. I'll have to look at prices if it's all that much I'll stick with
cheap paper towels.

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Old 01-29-2008, 07:09 PM   #6 (permalink)
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Default Re: Whats the goal - No algae at all??

10 hours of 4wpg is a bit much, even with compressed Co2.
I'd try cutting your hours down to 7 continuous, or 8 with a
2 hour lights-out break in the middle. That will definitely cut
down on the GDA you have to scrape off your glass Monthly.
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Old 01-29-2008, 08:48 PM   #7 (permalink)
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Default Re: Whats the goal - No algae at all??

When I get GDA you can use the growth on the glass as a "plot" of the light intensity. Where the intensity is the highest the GDA is the thickest. Where the intensity is low, there often is no GDA at all. So, there is no question at all in my mind that one way to reduce GDA is to use less light. I don't think it is related to fertilizing at all.
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