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  1. #1

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    Default Caddisfly Larvae


    0 Not allowed!
    Hey, everyone,

    So, I'm looking to build a biotope for caddisfly larvae (Family Trichoptera). I know that they need stream-like conditions and really clean water. I'm hoping to set up some sort of scaled-down stream biotope in an aquarium, hopefully a long 20-gallon if I can find one used.

    Has anyone kept these guys before? I'm looking to keep Pychnopsyche gentilis. I want to do a North American stream biotope, but I really don't know where to start with that. Obviously, this will be for next year's hatching of larvae--next February or so. It gives me time to collect my supplies...and save up for that Aquaclear filter I'll need.

    Thanks!

  2. #2

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    Default


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    I haven't kept any...but I know some of the lab set-ups are relatively elaborate. Depending on the species you do need to keep a constant flow and don't forget they need enough 'prey' (if that's what you're interested in) to eat...

    Be fun to experiment and see if you can keep it going...
    55 g Goldfish Tank - 3 Fancies, 2 Comets
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  3. #3

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    Default


    0 Not allowed!
    Thanks, Rue.

    Yeah, I've been collecting/studying them in my Freshwater Ecology lecture/lab and the professor mentioned that he had former colleagues keep them in a simulated stream. I'm dying to get my hands on some pictures of that set-up.

    These will be eating leaves exclusively, so no worries about food...although, it will be one kept at a time, as they try to eat each other if they're confined...

    Water flow and water quality will be the issue, you've hit it right on the head for sure. They are a water quality indicator species, so they die off very quickly if water is even slightly polluted.

    I guess experimenting will be the way to go. I just hope I won't have a whole bunch flying around my apartment after they pupate!

  4. #4

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    Default


    0 Not allowed!
    Quote Originally Posted by lotus flower
    I just hope I won't have a whole bunch flying around my apartment after they pupate!
    I was going to ask what your plan for the adults is.
    300 gallon mega tank: sailfin pleco, clown loaches, silver dollars, roseline sharks, congo tetras, new world cichlids
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  5. #5

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    Default


    0 Not allowed!
    You can build a "river" tank manifold from pvc tubing with powerhead/s at one end and filter sponges over the open pipes at the opposite end. Not too expensive, particularly for a 20 gallon tank. Water quality shouldn't be too difficult to maintain with filter carbon, just replace it weekly. Nothing but insect larvae and some vegetation would be a very low bioload anyway.
    http://www.loaches.com/articles/rive...anifold-design

    ^^^^Please click the eggs/dragons, thanks.

  6. #6

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    Default


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    Lotus, your photo isn't coming through. I right clicked on the red x in the corner box and clicked on "show picture", but it doesn't come up. Just goes right back to being a red x in the corner box.

    I assume this is a photo of the larvae? I'd love to see it, if I can.

    -- mermaidwannabe
    20 gal. high: planted; 7 white cloud minnows, several RCS, 2 blue shrimp, 5 Amano shrimp, several snails; Azoo air. 65 gal: planted; 6 rosy barbs, 6 yellow glofish, 3 red glofish, 3 zebra danios, 5 white cloud minnows, 3 dojo loaches, 6 crimson spot rainbow fish, 12 large Amano Shrimp, several snails; AC110.

  7. #7

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    Default


    0 Not allowed!
    Quote Originally Posted by mermaidwannabe
    Lotus, your photo isn't coming through....

    I assume this is a photo of the larvae? I'd love to see it, if I can.

    -- mermaidwannabe
    Actually, mermaid, I believe toddnbecka posted the link. I don't have any photos yet. Still in the set-up phase, unfortunately.

    To update: I had gotten a used desktop fountain and was going to rig up the pump to create a sort of mini-waterfall, but the directions say it's a federal law of some sort that any fountain has to have a ground-fault interrupter...and I couldn't find any in town that you didn't need to install in the wall electrical wiring. I was hoping I could find a version like a surge-protector or like an extension cord. Maybe online...

    However, I do have a small air pump that's not in use, so that's going to be put toward the new rig. And I found a nice, clear plastic bin that's clear on all sides...I couldn't find any used aquariums that were within my budget. I figure with the amount of water I need, I should be able to get in a good 3-4 gallons, which should be plenty, as according to the websites I've been on, these guys can survive in small aquariums for a few days.

    Oh, I guess I didn't mention...I'm not permanently housing these little critters. I'm using them to make jewelry out of their casings. I know, crazy as heck, but people do it a lot! Or, do it sometimes...heck, I'm the weird biology gal.

    So, they'll go in for about 2-3 days...I'm working on the filtering now. If I can afford a powerhead, then I'll do the set-up you've described, toddnbecka. Thanks for the link!

    Then, after a couple days, it's back to the stream from whence they came and a new one or two will be brought home. And so forth.

    This way we avoid the inevitable "Duck! We're being dive-bombed by caddis fly adults!" dilemma. I'm looking at you, Brhino.

    Although, my betta would like to try an adult as a snack...

  8. #8

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    Default


    0 Not allowed!
    Lotus, I can see in your "Hey everyone" post a blank box in the lower left hand corner with a small corner box and red x in it. There's supposed to be something there, usually a photo, and I can't get it to come up when I right click on the x -- which usually works by then clicking on "show picture" in the menu.

    What was that supposed to be? I'm eager to see it...

    -- mermaid
    20 gal. high: planted; 7 white cloud minnows, several RCS, 2 blue shrimp, 5 Amano shrimp, several snails; Azoo air. 65 gal: planted; 6 rosy barbs, 6 yellow glofish, 3 red glofish, 3 zebra danios, 5 white cloud minnows, 3 dojo loaches, 6 crimson spot rainbow fish, 12 large Amano Shrimp, several snails; AC110.

  9. #9

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    Default


    0 Not allowed!
    I actually had a 55 gal tank when I was younger that I kept only fish and stuff I would catch in the local stream. I had about 5 or 6 caddis fly larvae in there, a few got eaten by the crawdads, but 2 did end up making it to adult-hood. Can't remember how long it took, but my mom sure freaked out when I told her the "flies" came from the fish tank,

  10. #10

    Join Date
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    Default


    0 Not allowed!
    Mermaid: Ohhh, I know what you're talking about now! That's in my sig, and they're just silly little Fishy Eggs digital fish...you click on them and they grow up from eggs to adults. I joined Fishy Eggs from the link in William's sig. It's a fun way to become obsessed over yet another internet fad. And I love it. But I will post pics in a few days or weeks, once my tank is running.

    tkdracer: "Flies" is really misleading, given how big and moth-like they are! And I envy your childhood 55-gallon!

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