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Thread: Self sustaining fish food

  1. #1
    SCAPE Member Sr. SCAPEr SCas's Avatar
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    Self sustaining fish food

    An idea came to my mind of having a tank not only not need a filter, but also not need food.

    My idea is to use guppy or endler fry as a food source, since they eat their young. Any thoughts?

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    Moderator 2000 posts, Star SCAPEr Nick Shades's Avatar
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    Quote Originally Posted by SCas View Post
    An idea came to my mind of having a tank not only not need a filter, but also not need food.

    My idea is to use guppy or endler fry as a food source, since they eat their young. Any thoughts?

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    Depending on the size of tank and livestock planned, it is very possible.

    Nutrients still need to be added to the tank in one way or another, but almost always, they require a sump, or at the very least, a HOB Refugium.

    This is how the exotic live-food requiring dragonets and seahorses succeed in the home aquarium.

    I LOVE Sumps for just this reason. It keeps a nursery closed within the system, and separates it from the display tank where there will be too much predation if not separated from the DT.

    I don't know how I will feel about using livebearer fry within the same system, because mortality will go way up when they get sucked into the pump, etc. HOWEVER, If you were to do, so, Daphnia, or an inline brine shrimp hatchery, you will be able to pull it off OKAY.

    Many folks use scuds for this reason, and just about any Freshwater copepod can work as well.

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    Pew Pew Lazor 5000 posts, Officially addicted to SCAPE! Zenzu's Avatar
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    Flake food is so cheap why would you intentionally do this?
    THE CAKE IS A LIE!

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    SCAPE Member SCAPEr Smilet's Avatar
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    Science


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    SCAPE President 2000 posts, Star SCAPEr Kole85's Avatar
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    Quote Originally Posted by SCas View Post
    An idea came to my mind of having a tank not only not need a filter, but also not need food.

    My idea is to use guppy or endler fry as a food source, since they eat their young. Any thoughts?

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    Start up a Walstad style tank, throw in about 100 neocaridina shrimp, let them have the run of the tank for about 6 months to a year, then put some fish in the tank and you will probably never have to feed the fish.
    My 20g long I used as a cull tank for my PFR and Orange sunkist was just shrimp for almost a year and started getting overrun with pest snails. I put 3 pea puffers in there months ago and have only fed them anything on purpose 1 time, a few live blackworms. The snails have been wiped out for some time now but I always see fat bellies on the pea puffers. I only feed those shrimp like once every 2 weeks, if that. The food sources for that tank are virtually self sustaining.
    Also, if you control the population in a shrimp tank their food source (biofilm) will sustain itself and you wont need to feed the tank.


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    More Tanks!

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    SCAPE Member Sr. SCAPEr SCas's Avatar
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    Quote Originally Posted by Zenzu View Post
    Flake food is so cheap why would you intentionally do this?
    Just an idea, i woulndt do it anytime soon

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    Moderator 2000 posts, Star SCAPEr Nick Shades's Avatar
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    You can also use a spare canister filter as a copepod farm. Specifically the clear plastic ones, such as those from zoo med for turtles.

    Take out all the media/chambers, and use sera ceramic media noodles or marine pure and then add a light to shine through it, and stuff hornwort and anacharis in there.

    You'll get a bunch of micro fauna from that.

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    SCAPE Member Pro SCAPEr Bongox3's Avatar
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    Novel idea, but eventually you’ll experience a nutritional deficiency if totally reliant on fry... live food is always cool, I just don’t like seeing dozens of scuds zooming around scapes, but that’s just my opinion... for guppies, I would just used a quality staple food, like Carlo suggested... they’ll naturally supplement their staple food by devouring fry...but they’ll get all their nutritional needs covered.

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    SCAPE Member Sr. SCAPEr the.under.ground's Avatar
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    Reading the first comment made my head hurt #properenglishpls


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    Moderator 2000 posts, Star SCAPEr Nick Shades's Avatar
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    Quote Originally Posted by the.under.ground View Post
    Reading the first comment made my head hurt #properenglishpls


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    SCAPE Member Sr. SCAPEr the.under.ground's Avatar
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    Quote Originally Posted by Nick Shades View Post
    No not yours lol the beginning of the thread aka what scas said lol


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    SCAPE Member Sr. SCAPEr SCas's Avatar
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    Quote Originally Posted by the.under.ground View Post
    No not yours lol the beginning of the thread aka what scas said lol


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    Lol

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    SCAPE Member Just Planted Charizard's Avatar
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    In theory, you could try growing algae under powerful lights so it grows fast and stock with algae eating animals.

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    SCAPE Member Sr. SCAPEr SCas's Avatar
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    Quote Originally Posted by Charizard View Post
    In theory, you could try growing algae under powerful lights so it grows fast and stock with algae eating animals.
    Maybe instead of lights it gets sun

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    SCAPE Member Sr. SCAPEr stormvisions's Avatar
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    What about attaching a refugium, culturing copepods and Moina for example, connecting it to the main tank with say a 1/2 tube and plastic mesh small enough to allow critters, too big for fish to go back into it. The copepods and moina are attracted to light so creative use of a small led on a timer might have them swimming out at specific times of day. Or even a small pump on a timer that increases the water volume in the refugium for a few minutes 'flushing' some critters into the main tank. When the pump turns back off, pressure equalizes and the 'flush' will go back.

    I tried my best to give someone reading this a headache. Let me know if I succeeded.

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    SCAPE Member Sr. SCAPEr SCas's Avatar
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    Quote Originally Posted by stormvisions View Post
    What about attaching a refugium, culturing copepods and Moina for example, connecting it to the main tank with say a 1/2 tube and plastic mesh small enough to allow critters, too big for fish to go back into it. The copepods and moina are attracted to light so creative use of a small led on a timer might have them swimming out at specific times of day. Or even a small pump on a timer that increases the water volume in the refugium for a few minutes 'flushing' some critters into the main tank. When the pump turns back off, pressure equalizes and the 'flush' will go back.

    I tried my best to give someone reading this a headache. Let me know if I succeeded.
    Another cool idea

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