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Thread: Test #3 Growing out discus fry with limited water changes and plants/algae scrubber

  1. #61
    Registered Member Luke in Phoenix's Avatar
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    Default Re: Test #3 Growing out discus fry with limited water changes and plants/algae scru

    Quote Originally Posted by Paul Sabucchi View Post
    Thanks Luke for this thread, I read it a few months ago as I startes swatting to learn how best to set up a discus tank...
    Would love to see some pics of your setup if you have any.

  2. #62
    Registered Member Paul Sabucchi's Avatar
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    Default Re: Test #3 Growing out discus fry with limited water changes and plants/algae scru

    As mentioned I have set the scrubber up in one of my MBUNA tanks, will post some photos as I find them (had them all neatly filed on photobucket and the buggers changed the rules and asked for ransom). The 100gal discus tank is cycled but still empty, fish will go in end of September (still too hot for shipping). My multiple tank syndrome has gradually worsened over the last 12 years and about a year ago decided to "do Discus" so started to swat up on this and some Italian forums. As I am getting juvies to grow out I would love to do a parallel test (all other things being equal) between a traditional BB high wc and a low wc+algae scrubber but only got room for one tank so to be on the safe side I will go traditional for the growout period and probably add the scrubber once grown and actually considering if Daphnia could grow in the scrubber, so some would drop in the tank from the overflow and provvide good fresh food and some fun for the fish.
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    Last edited by Paul Sabucchi; 08-18-2017 at 04:04 PM.

  3. #63
    Registered Member Paul Sabucchi's Avatar
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    Default Re: Test #3 Growing out discus fry with limited water changes and plants/algae scru

    Quote Originally Posted by Luke in Phoenix View Post
    Would love to see some pics of your setup if you have any.
    Will download the build photos from Phuckingbucket and post them here, these are a few I had left on the phone. The scrubber is a 5' long shallow tray that sits on top of the tank braces, the lights are on the tank lid. Algae grow on Darice #7 rigid plastic canvas. NO3 tests show results from similarly stocked and fed 100gal mbuna tanks, the tanks both had massive repeated wc to bring NO3s to 0, then over 6 weeks the one with the scrubber was left as is for 6 weeks, the other had 50% water changes at 2 week intervals twice then left two weeks, then I tested the water from both tanks and the results are pretty obvious. At some point I would like to repeat the comparison also testing for phosphates and desolved oxygen. Ciao
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    Last edited by Paul Sabucchi; 08-18-2017 at 04:04 PM.

  4. #64
    Registered Member Paul Sabucchi's Avatar
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    Default Re: Test #3 Growing out discus fry with limited water changes and plants/algae scru

    Here is a photo of the (black expanded PVC) tray housing the roughed up plastic canvas. The water flow is provided by the return of one of the two 300 gph canister filters, it goes in from a hole on the side and out from a height adjustable overflow trough the hole at the bottom of the other end. Ciao
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  5. #65
    Registered Member Luke in Phoenix's Avatar
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    Default Re: Test #3 Growing out discus fry with limited water changes and plants/algae scru

    Very cool setup. I like how you put the lights in the hood and it takes up no extra space. No sump needed!
    I test my phosphates and they quickly go to zero. I actually dose phosphates in my tak to keep the algae growing faster.

  6. #66
    Registered Member Paul Sabucchi's Avatar
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    Default Re: Test #3 Growing out discus fry with limited water changes and plants/algae scru

    Quote Originally Posted by Luke in Phoenix View Post
    Very cool setup. I like how you put the lights in the hood and it takes up no extra space. No sump needed!
    I test my phosphates and they quickly go to zero. I actually dose phosphates in my tak to keep the algae growing faster.
    Very interesting, the hair algae in the scrubber look a little thinner and nitrates yesterday were almost up to 10 so may have to test for phosphates and if necessary dose some, what do you use? Cheers, grazie & ciao

  7. #67
    Registered Member Luke in Phoenix's Avatar
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    Default Re: Test #3 Growing out discus fry with limited water changes and plants/algae scru

    Quote Originally Posted by Paul Sabucchi View Post
    what do you use?
    This is what I use but I'm sure there are lots of options. I try to keep it around 2ppm, it goes down pretty quickly. I've seen many people dose Iron and other items to "feed" the algae and keep it filtering at the highest level possible.

    phos snip.jpg

  8. #68
    Registered Member Paul Sabucchi's Avatar
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    Default Re: Test #3 Growing out discus fry with limited water changes and plants/algae scru

    Cheers!

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