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Algae Algae Control - Get some advice for your algae problems. Control algae in your aquarium with the solutions given here.

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Old 01-29-2020, 03:05 PM   #11 (permalink)
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Default Re: Algae and Iron

How will you test for Fe? This sounds like a tough experiment to work out?
So algae will be your indicator? I wonder if you can collect and dry the algae and burn it and find left over iron.
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Old 01-29-2020, 03:46 PM   #12 (permalink)
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Default Re: Algae and Iron

The plants you chose are not the best to show a difference. They really should be plants like Hygrophila or Sagittaria or other all green plants that show a flush of greenness on the iron. Except for Vallisneria..it might even be greener with no iron in the water. Always exceptions.
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Old 01-29-2020, 04:28 PM   #13 (permalink)
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Default Re: Algae and Iron

The plants iin the tanks are Sagittaria subulata and a hybred swordplant, plus floating Salvinia. I'm not interested in the effect on the plants, because it is well proven that iron helps the plants. My interest is the effect on algae, primarily on the effect vs the amount of light the iron fertilized water gets. I'm very interested in the idea that iron shortage can inhibit algae growth.
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Old 01-30-2020, 08:35 AM   #14 (permalink)
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Default Re: Algae and Iron

Dont use any plants. I can tell you,you can can grow pounds of hair algae in aquariums that never see a drop of IG,plus spot and blue green. A third aquarium with backyard dirt would also feed hair algae. It also minus a drop of iron. MY "Prediction" because I've done it!
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Old 01-30-2020, 09:44 AM   #15 (permalink)
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btw,That sword plant that for the last year,was super struggling to grow 4" leaves? IS IN DIRT. Its one of the first plants I added..I used garden soils and sands..with an inch or so of sand. From,oh, October of 2018- Nov.2019 it came close to dying..I had even just cut off every leaf at one point. Just a bud.
And now....virtually all this since late November.

one more,The last Prof. Scientist I worked for loved the way I wrote my notes I left him. Had a sense of humor did he.
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Old Yesterday, 03:50 PM   #16 (permalink)
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Default Re: Algae and Iron

My experiment is starting!! The two tanks are now pretty well established, with no obvious algae, almost exactly the same plants in each, same light, same substrate, and a Betta in each one. Tonight I will start dosing Flourish Iron, to get 0.10 ppm in the water in each tank, dosed after lights out at night, every other night. If all goes well, I will get no obvious algae. After about 2 or 3 weeks, I will change the dosing time for one tank to right after the light comes on.

Now I need a Swiss trolley to ride in so I can get a brainstorm going!!
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Old Today, 02:15 AM   #17 (permalink)
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Default Re: Algae and Iron

I'm sorry if I missed something, but Flourish contains Iron gluconate and it is being said to be uptaken very rapidly by plants (or broken down if plants can't fully utilize it). Do plants or algae consume nutrients during night?

It sounds like you're just adding additional step in iron availability:

Dosed with lights on: Iron gluconate -> Iron -> Plants/algae
Dosed with lights off: Iron gluconate -> Iron -> "some other organic Iron molecule" -> (light) -> Iron -> Plants/algae

From what I read, Iron gluconate seems to be so bio-available, that it might be impossible to detect any Iron even 1 hour after dosing during photosynthesis period (unlike other chelators).

But again, maybe I just got the wrong end of the stick.
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