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Thread: High nitrate level in shrimp tanks

  1. #1
    Join Date
    Feb 2022
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    Singapore

    High nitrate level in shrimp tanks

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    Hey guys, need some urgent help.
    I have 2 tanks, one for fire red (4.5gal) and one for crs (7.2gal)
    The fire red tank has been running for more than half a year, crs just started 3 weeks ago.
    Recently, my nitrates level have been very high, few fire red died and one crs died.
    Fire red tank has java fern and marsh pennywort, crs has dwarf hairgrass and anubias.
    I also bought denitrate for my crs tank.

    Nitrate level
    Fire red - 30ppm (reached up to 80, did 50% water change for a few days and it dropped to 20ppm)
    CRS - at least 80ppm (did some water change, dropped to 40ppm but increased again, dont dare to do more)
    Tap water - 5ppm

    I feed JBL novoprawn food (2 pellets in the morning and one at night), bacter ae twice a week

    Dont think overfeeding is the culprit, shrimps finish them within 2h.

    Could someone advise me what to do

  2. #2
    Join Date
    Feb 2022
    Posts
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    Country
    Singapore

    Re: High nitrate level in shrimp tanks

    Just did a 50% water change for crs, nitrate dropped to 40ppm

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