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Help me with proper start

Discussion in 'Non-CO2 Methods' started by gorazdr, Sep 4, 2014.

  1. gorazdr

    gorazdr New Member

    Joined:
    Aug 21, 2014
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    Local Time:
    11:17 PM
    Hi all!

    I started new 240L (63 us.gal) planted tank. I used 10kg of Dennerle plant substrat covered with 10L of JBL Manando sand topped with black quartz sand. Light is 2x54W T5HO no reflectors 1" over surface of water on for 5 hours.

    The tank was cycling (with pure ammonia) in dark for 3 weeks. When the cycle was finished I took some measurements.

    ph: 8.1
    kh: 8
    gh: 10
    nh4:0
    no2:0
    no3:>80
    po4:0

    Next day I drained about 80% of water and planted most of the plants.
    On the next day I added some Microfertilizer (Profito) and Fosfo and started daily dosing of Easy Carbo (3ml)
    Took another measurements:
    ph:7.5
    kh:10
    gh:12
    nh4, no2:0
    no3:10ppm
    po4:0.4ppm

    I remeasured every two days and no3 was droping by 2.5ppm and po4 by 0.1ppm.

    After 4 days I added some fish (10 white cloud minnows and 6 odessa barbs) and some snails.
    I also added some fast growing plants.
    Plants list so far:
    1 bunch of Hornwort
    1 handfull of Duckweed
    3 Walissneria Gigantea
    6 Cryptocoryne willisii
    30 replants of Bacopa
    6 thin leaved steam plants (unknown)

    At that time no3 was down to just 2.5ppm and I had nothing to raise it so I started to overfeed.

    After 3 days no3 was a little higher at 5ppm and po4 at 0.3ppm but there is now a lot of leftover food on substrate.
    Yesterday I finally got some kno3 so I dosed no3 up to 20ppm and po4 to 0.7ppm.

    So here are my questions:
    - is no3:po4 ratio OK or should I adjust?
    - can I do 25% water change (if I do ph will drop by 0.3)?
    - should I clean substrate of leftover food?

    Gorazd
     
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