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Results 1 to 7 of 7
  1. Default hard green algae on glass

    0 Not allowed!
    So I have this pesky green algae that builds up on my glass every few weeks that is hard. I have to use the scraper blade on my multi head top fin scrubber to get it off. Root cause unknown but I think one of the reasons for the build up of anything on my glass is due to I simply don't have enough water flow in my tank. I have a canister filter on my 55 gal that is rated at 264gph, but it also runs through a UV sterilizer unit so that is pulling the flow rate down some too a little. What are your thoughts?

    I was looking at the Hydor Koralia Nano 425 model to add some flow but not to over power the fish.
    Attached Images Attached Images

  2. #2


    0 Not allowed!
    I don't know if I can be much help, I just wanted to say I think that is a really nice tank. Very well done. Just some things to consider are lighting and nutrient levels. From the plants you have there it would appear that they should out compete the algae for nutrients. Maybe your lights are on a little too much? 6 hours I think is recommended. It could very well be the flow but I've no experience in that department.
    Increasing your biodiversity increases your stability.

    You know what this tank needs? ........................ Crypts.

  3. Default

    0 Not allowed!
    lighting is two 48" 54w HO 10,000k bulbs which I have on a timer set for 8 hrs a day.

    Thanks for the on the tank!

  4. #4


    0 Not allowed!
    Looks to me like you're low on phosphate. Not surprising since there's a lot of fast growers in there.

  5. Default

    0 Not allowed!
    how can you tell that? How do I fix it?

  6. #6


    0 Not allowed!
    It's the most common cause of green spot.

    You could fix that by adjusting the fertilizer regimen to include a bit more phosphate, say another 1ppm per week. Alternatively get a phosphate test kit and keep to the 10:1 ratio for nitrate:phosphate

  7. Default

    0 Not allowed!
    Im getting a few things together to order so I'll throw a test kit and some seachem Phosphorus as well. Thanks!

    I have a topic in the general aquarium category listed under "Hydor circulation pumps, theory locations"
    can you take a look at whats going on in that topic and give me your opinion?

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