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Type: Posts; User: Pny

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  1. Replies
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    I've got my lights... Works great with European...

    I've got my lights... Works great with European 230V/50Hz. :-)
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    PNY's DIY non-floating SURF-style algae scrubber

    A few photos of one of my experimental algae scrubbers... A non-floating SURF-style algae scrubber in the works.

    * Designed to be in-sump, over the water surface.
    * Water exits through the...
  3. Giving the Belgian Blue scrubber another try......

    Giving the Belgian Blue scrubber another try... Getting a bit of growth in the chambers this time... (Middle chamber has a LED-failure that currently impacts growth)

    6582
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    I could evaluate them under European conditions...

    I could evaluate them under European conditions in my reef cube... ;-)
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    Just let the unreacted reagent settle to the...

    Just let the unreacted reagent settle to the bottom where it will not affect the measurement.
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    Nice! Recognize this scrubber from the MASA forum.

    Nice! Recognize this scrubber from the MASA forum.
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    How is the growth, and what is the nutrients...

    How is the growth, and what is the nutrients levels?
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    Looks like dinoflagellates...

    Looks like dinoflagellates...
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    No, there is something called prior art......

    No, there is something called prior art...
    http://en.wikipedia.org/wiki/Prior_art
  10. I've tried this for about 6 months now, and this...

    I've tried this for about 6 months now, and this is all growth I got... Must say I'm a bit disappointed of the growth (lack of) in this floating-type scrubber... I think I'm about to give up the...
  11. The algae in the scrubber is very dark, brown?,...

    The algae in the scrubber is very dark, brown?, very hard to scrape off and with a texture like steel wool...
  12. Increased bubbles but still very little growth......

    Increased bubbles but still very little growth...


    https://www.youtube.com/watch?v=QTPDjrJsKWQ
  13. Ok, I will give more bubbles a try...

    Ok, I will give more bubbles a try...
  14. I doubt that, since it is much stronger than the...

    I doubt that, since it is much stronger than the SURF2/4 lights if not dimmed down... The one thing left to try is to increase the mount bubbles. My scrubber has much less air than the SURF2/4 units...
  15. No pods, but a bit of cyano bacteria... I have...

    No pods, but a bit of cyano bacteria... I have not harvest any algae since I started it about 3-4 months ago... I've just brushed it with a toothbrush every other day to prevent the cyano to build up...
  16. Algaescrubbing doesnt seem to work with my tank...

    Algaescrubbing doesnt seem to work with my tank at all...

    After 3-4 months, all I got is some green coating in the scrubber... I've removed the biopellets reactor and stopped the ozone unit and...
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    Wow, with that kind of argument my reef tank will...

    Wow, with that kind of argument my reef tank will always be free of algae, since I have a large reef tank - "that spread the nutrients over a large space".... No, I simply do not buy that argument.
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    Why would a large screen grow less algae than a...

    Why would a large screen grow less algae than a small screen? That does not make sense...
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    Nice recirculating biopellets reactor... Is it a...

    Nice recirculating biopellets reactor... Is it a DIY?
  20. Thread: Slim LED ATS

    by Pny
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    Looks nice! I guess you soon will see less...

    Looks nice!

    I guess you soon will see less growth where you decided put the blue LEDS instead of reds...
  21. Finally got my components for dimming control of...

    Finally got my components for dimming control of my scrubber... I've added three knobs for controlling the LEDs for each chamber individually using the PWM outputs of an Arduino Pro Mini 5V...
  22. I took a closer look at the algae in the scrubber...

    I took a closer look at the algae in the scrubber today. Some of it looks like slimy cyano, some are red algae that sticks very hard to the strings it is growning on, and some looks very light/white...
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    Photo?

    Photo?
  24. Well, the algae scrubber isn't my only filtration...

    Well, the algae scrubber isn't my only filtration for the moment... The biopellets+vodka dosing takes my NO3 levels down to zero, so I dose KNO3 to be able to also get my PO4 down...
  25. Things goes really slow... i've started dosing...

    Things goes really slow... i've started dosing NO3 (to balance the PO4-NO3 uptake) and got some growth in the scrubber... looks like red turf algae.
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    This does not make sense... The luminosity is...

    This does not make sense... The luminosity is just a power per unit area, and the total power will just be the sum of powers of all the incident beams.


    Do you have the specification of such 3W...
  27. The Led fixture need to be close to the water to...

    The Led fixture need to be close to the water to avoid the light to light up the entire sump area. It would not be safe to keep it unsealed.
  28. It must be sealed since it get in contact with...

    It must be sealed since it get in contact with the water...
  29. I've tried seal it with silicone (for aquarium...

    I've tried seal it with silicone (for aquarium use) now... That will attach to the aluminum for sure... if it does not attach to the acrylic I can glue the acrylic to the silicone on the heatsink...
  30. Considering screwing it all together using a...

    Considering screwing it all together using a silicon sheet as sealing.
  31. I've got some problems getting the seal between...

    I've got some problems getting the seal between the aluminum heatsink and the plastic diffuser watertight. I've tried twice now. The glue I am using attaches good to the acrylic but not as good to...
  32. I've not yet decided if I should use a controller...

    I've not yet decided if I should use a controller to be able to dim the light, thats maybe a must, since the amount of light this device outputs is just sick! Just look at it and get an instant eye...
  33. Its some kind of prismatic acrylic plate, I...

    Its some kind of prismatic acrylic plate, I bought it from a private person in germany on ebay.
  34. Started working with the LEDs for my Belgian Blue...

    Started working with the LEDs for my Belgian Blue almost floating scrubber...

    LEDs tinned and mounted:
    4659

    What it might look like with light diffuser placed in front of the LEDs:
    4660
  35. The algae growing substrate in place... I started...

    The algae growing substrate in place... I started with a too coarse media that was difficult to glue. The end result is a mix of coarse and fine media. Wondering if the strings found on the SURF2...
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    If you use red LEDs you dont spend energy on...

    If you use red LEDs you dont spend energy on wavelengths (colors) that the algae dont need and dont use.
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    What substrate is that?

    What substrate is that?
  38. "Swedish Blue" might have been more...

    "Swedish Blue" might have been more geographically correct, but "Belgian Blue" is more appropriate since it associates with the super cow "on steroids" with the same name (google it!)... With its...
  39. PNY's almost floating algae scrubber - The Belgian Blue

    Hi there!

    After seeing the SURF2 algae scrubber sold by Santa Monica I wanted to try out the algae scrubbing myself... and here's some photos of my DIY water driven multi chamber almost floating...
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    I don't know about nutrient uptake, but don't...

    I don't know about nutrient uptake, but don't confuse algae with plants. Algae is NOT a type of plants. If they where they would not live in salt water since no plants can live in salt water...
  41. Thread: SURF2 and SURF2

    by Pny
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    Impressive growth!

    Impressive growth!
  42. Thread: Pulsed flow

    by Pny
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    Any news of this?

    Any news of this?
  43. Thread: Why red LEDs ?

    by Pny
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    Why do you want to use silicone to glue acrylic?...

    Why do you want to use silicone to glue acrylic? (It will not stick to acrylic) instead of acrylic glue that the rest of us use? Does the acrylic glue not stick to the reflective surface?
  44. Thread: SURF2 and SURF2

    by Pny
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    Ok, just trying to convince myself that I...

    Ok, just trying to convince myself that I need/want/can afford two of these things... ;-)
  45. Thread: SURF2 and SURF2

    by Pny
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    I suppose you already have experimented with more...

    I suppose you already have experimented with more holes for air input, ie dividing the same amount of air flowing into multiple holes in the bottom?
  46. Thread: SURF2 and SURF2

    by Pny
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    This looks really interesting! I believe the...

    This looks really interesting!

    I believe the only weak spot of this design is the amount of air needed... Why so much air? Does the scrubber need that much air (CO2) or is it needed just to...
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    Put the scrubber in a restricted environment,...

    Put the scrubber in a restricted environment, then what? What would the test be?
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    Algaescrubbers and biopellets?

    (My first post after some time lurking this forum)...

    Is it possible to use an algae scrubber as complementary filtration in a large system (1000 liter / 275 US Gallons) already using bio pellets...
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