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Thread: Media Problems?

  1. #1
    Join Date
    Jan 2015

    Media Problems?

    hello everyone!

    So I decided to start eating healthy and wanted to do my own aquaponics and I have a problem with going big or going home.

    So I have had my stem running for about 3 months now, Havent had much problem with my fish I have 100+ perch have lost just 2 about a week ago they were much smaller then the rest going to hope that was just natural coarse. But I have about a 1500 gallon pool with a 4x8 media bed using lavarocks. I have 3 270w LED grow lights. My plants started really slow and continue to not grow well or die off. Only thing that is doing well is lettuce and strawberry. Although the strawberry grow in weird shapes. Pumpkins, Watermelon, broccoli and peppers have all died off. The tomato plants I planted 3 months ago are about 1' Tall and starting to die. When my lettuce touches the lava rocks they seem to rot or decay and same with my strawberries.

    I am including some pictures if anyone has any ideas on what I could improve that would be awesome!

    Thank you
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  2. #2
    Join Date
    Jan 2014
    Edmonton, Canada

    Re: Media Problems?

    Is it a flood & drain system? If so, you might need a longer cycle - most references seem to go with 15 minutes. I was at a university aquaponics farm this fall, and they figured that it's not necessarily wet roots that causes the stems to decay, but a lack of O2. They pump pure O2 into thier systems and EVERYTHING grows like mad!! Doesn't matter if it's in F&D, DWC, Constant Flow - pure O2 does the trick!

    Of course, most of us don't have the resources to run pure O2, so we have to do what we can to increase O2. 15 minute cycle in the F&D GB, aeration in the FT, etc.

    With the leaves and fruit rotting when it's in contact with the rock makes me suspect the water is coming quite close to the top. You may need to add another layer (1/4-1/2"); however, it may also correct itself with a longer cycle.
    Jason M.

  3. #3
    Moderator davidstcldfl's Avatar
    Join Date
    Nov 2009
    Saint Cloud FL USA

    Re: Media Problems?

    Hi pistol, Your system is still pretty new.
    Plants like tomatoes and peppers are nute hogs. You might stick to non-fruiting plants, for a little while, till your system matures.

    "Freedom is never more than one generation away from extinction. We didn't pass it to our children in the bloodstream. It must be fought for, protected, and handed on for them to do the same." - President Ronald Reagan

  4. #4
    Moderator JCO's Avatar
    Join Date
    Dec 2007
    Orange Park, Florida

    Re: Media Problems?

    Welcom to the forum. Sorry to hear you are having problems from the get-go. How big are you fish? Maybe they are not producing sufficient waste to power your bio-filter to it's needed capacity for the plants. It's difficult to say more without a detailed description of your system and it's operation.
    Irish eyes are always smiling but
    • "In the eyes of the world, you are only as good as your last success"
    so never forget

  5. #5
    Members Apollo's Avatar
    Join Date
    Aug 2013
    Phoenix, AZ

    Re: Media Problems?

    Welcome, glad that you have joined us. May your journey bring you the knowledge that you seek, put a smile up on your face, create hours of pleasure to stimulate your mind, an a healthier life style for your heart...from Apollo__Phoenix, Arizona.

    I was wondering what your water readings were? I started with 40 Pink Tilapia's about 1 inch long, I have 2 large GB's and my FT is 7' X 7' @ 32" deep. It took my system 45 days to get my Nitrates up to 60 ppm.

    If you want to view my set up from start to now, check out “Fire Pit … AP” then “Pipe Siphon by Apollo” and ending with "Got Vertigrow?".


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