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#1
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nutrient deficiancy. how can u tell?
I just finished planting a 75g tank a little over 3 weeks ago and am
wondering how to tell when plants have used up all the nutrients in the water. The tank has basically already cycled do to pre-existing bacteria from the filter. I have new growth on the plants but am noticing a kind of brown algae forming on the leaves of some. I know brown algae is common in a new tank but was wondering how I could get the plants to out compete it. Currently houses 2 otos, 3 SAE, 1 rubber pleco, and 12 amono shrimp and 5 rainbows. 7-10 days in between water changes, pH ~7.2. 210w of compact lighting on for about 11 hrs a day. Pressurized CO2 injected as well. Onyx/flourite mix substrate. When should I start fertilizing? Should I instead look into purchasing more oto's as I know they relish brown algae? Also am getting green spotted algae on the glass or should I adjust something for now and fertilize a little later. Its a beautiful tank now and would really like to keep it this way. thanks |
#2
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nutrient deficiancy. how can u tell?
Bugbear wrote:
I just finished planting a 75g tank a little over 3 weeks ago and am wondering how to tell when plants have used up all the nutrients in the water. The tank has basically already cycled do to pre-existing bacteria from the filter. I have new growth on the plants but am noticing a kind of brown algae forming on the leaves of some. I know brown algae is common in a new tank but was wondering how I could get the plants to out compete it. Currently houses 2 otos, 3 SAE, 1 rubber pleco, and 12 amono shrimp and 5 rainbows. 7-10 days in between water changes, pH ~7.2. 210w of compact lighting on for about 11 hrs a day. Pressurized CO2 injected as well. Onyx/flourite mix substrate. It soulds like you have started right-good lighting, good substrate, CO2, plants and algae eaters. Good job! When should I start fertilizing? Should I instead look into purchasing more oto's as I know they relish brown algae? Also am getting green spotted algae on the glass or should I adjust something for now and fertilize a little later. Its a beautiful tank now and would really like to keep it this way. Here's what you should look at: 1. Make sure your have LOTS of plants. The more fast growing and healthy plants, the less opportunity for algae to get a foot hold. 2. As far as WHEN to start fertilizing, since you don't want your plants to start suffering before you start. Start standard PMDD immediately! 3. Regarding deficiencies, hopefully you don't have any, but here's a good diagnosis site: http://www.csd.net/~cgadd/aqua/art_plant_nutrient.htm Click here too: http://www.csd.net/~cgadd/aqua/articles.htm http://www.thekrib.com/Plants/ |
#3
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nutrient deficiancy. how can u tell?
You won't be disappointed with Chuck Gadds web site-- his methods work well.
For what its worth.. -Bruce |
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