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Thread: Why won't floating plants thrive in my tanks?

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    SCAPE Member Just Planted jnatelowe's Avatar
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    Why won't floating plants thrive in my tanks?

    Supposedly floating plants are easy to take care of, but I can't seem to get any of the one's I've got to thrive. I have some red-root floaters and salvinia minima in my son's fish tank, and some salvinia auriculata in a quarantine tank, and in both cases the plants are slowly withering and dying. Both tanks are cycled. My son's tank has a betta, three bronze corydoras, and three Amano shrimp. The quarantine tank has four nerite snails, one large ramshorn snail and an unknown number of baby ramshorns. They both have HOB filters, but I made barriers out of plastic juice bottles to reduce the flow. Any ideas why these plants won't grow for me?

    Son's tank water parameters:
    Temp: 77
    Nitrates: <20ppm
    Nitrites: 0ppm
    GH: 300+
    KH: between 80 and 120
    PH: 7.6-8
    20210601_100223.jpg

    Quarantine tank water parameters:
    Temp: 71 (heater is currently off)
    Nitrates: <20ppm
    Nitrites: 0ppm
    GH: 300+
    KH: between 80 and 120
    PH: 7.6-8
    20210601_100115.jpg

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    SCAPE Member Just Planted adayrit's Avatar
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    I like your filter mods.

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    SCAPE Member Just Planted jnatelowe's Avatar
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    Thanks!

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    SCAPE Member SCAPEr phuchuynh92's Avatar
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    I have a similar problem as you, I think my water just doesn't have enough nutrients for the plant to grow. but hopefully someone more experienced can chime in as well because I am interested in the answer

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    SCAPE Member Just Planted adayrit's Avatar
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    .
    Last edited by adayrit; 06-01-2021 at 08:34 PM.

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    SCAPE Member 1000 posts, Semi-Pro SCAPEr sc91006's Avatar
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    Are you using tap water? If so do you treat it with Flourish or Excel? I have Frogbits, Salvinia and dwarf water lettuce and they all thrive. The roots of the frogbit grows all the way down to the substrate and more. Every couple weeks I have to pull some out cause they are just growing so fast. I use R/O water and tank parameters are:

    Temp 77-79
    TDS 150
    Nitrite: 0
    Nitrate: 0
    PH: 7.2
    GH: 120
    KH: 120

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    SCAPE Member Just Planted jnatelowe's Avatar
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    I am using tap water (de-chlorinated with Prime), I don't use Flourish or Excel. I started using ADA Green Brighty Mineral about a week ago, so maybe that will help. The GH in my tap water is really high, though. Using the API GH test, I have to put in about 16 to 17 drops before it changes color, and their chart stops at 12.

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    SCAPE Member SCAPEr dwarph_shrimp's Avatar
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    I've been growing a lot of frogbit in tap water in a 30 gallon that gets a LOT of natural light. I top off weekly and change the water every 2 weeks. I treat the water with Prime. The 30 gallon has 12 white clouds, a few otos, and a few dozen cherry shrimp.

    Maybe try to experiment with tap water and prime in a bucket and leave it outside. See if they grow faster. Then you can at least rule out the tap water(?)

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    SCAPE Member Just Planted rooneybowers's Avatar
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    I had the same issue. I started adding liquid fertilizer and within a week my plants were much better.


    Sent from my iPhone using Tapatalk

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    SCAPE Member Just Planted Afsheen's Avatar
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    Hey there!

    I honestly had horrible luck with floaters until I started regimenting with ADA brighty K, or green brighty neutral (which it sounds like you've started using).

    Co2 always helps as well, but yeah I think red root floaters are the trickiest for me.

    Out of my frogbit, salvinia, and red root, the red root is by far the slowest grower

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