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Help! How much light do I need?

Discussion in 'Lighting' started by rs18alpha, Aug 20, 2017.

  1. rs18alpha

    rs18alpha Subscriber

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    I'll be redoing my 40 breeder soon. The lights I'd like to use are 1 Current USA Satellite 36" full spectrum 6500K
    2 Chichiros 401A 16" up to 8000K these lights are white. I'll place them end to end to make them reach 36"
    Right now my lights are on 8hours a day.
    I use CO2 around 2bps
    Substrate, I think I'll try the Eco complete?

    The plants I'll be using are as follows.
    Crypt Wendtii brown 6 of them.
    Red Flame Sword 1 pretty good sized plant.
    Brazilian Penny Wort, a hand full of this. Right now it's floating. I'd like to have it float in the new set up.
    I could also put some in the substrate as well.
    Red Tiger Lotus 1
    Dwarf Water Lily Nymphaea Rubra 4
    Hygrophila Pinnatifida 1

    I've seen a lot of videos where people were using one led like one of those Finnex 24 7 fixtures or a single fluval led etc.

    I tried T5HO lights but had bad algae problems.

    I have a small 10watt cool light color aprox 6000 to 6500K led spot light when I turn it on over my Red flame sword the plant starts to pearl right away big time.
    It pearls a little when the light is off. So that's why I'm not sure how much light I need over all.

    Any suggestions will be Greatly Appreciated!!!
     
  2. Kyalgae

    Kyalgae Lifetime Members
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    Sounds like not enough CO2. 2 bubbles per second isn't that much. What dissolves your co2?
     
  3. rs18alpha

    rs18alpha Subscriber

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    Thanks for the response.
    It's an Atomic Aqua Super Diffuser Atomizer.
    It has pretty small bubbles coming out of it.
    I've always been a little hesitant to increase the CO2 out put.
    That's why I'm looking for is suggestions on led lighting.
    I'm trying to find out if my lights are on to long or if they're to bright. I know it's a fine balance.
    I guess I could increase the CO2 and keep the lights at my current setting.
    I'm not really having an algae issue right now.
    I have a little hair algae on my Red flame sword. It's on the older leaves. But it's very little.
    The rest of my plants are doing pretty well.
     
  4. DutchMuch

    DutchMuch Junior Poster

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    Do you turn your Co2 off 1 1/2 hours before the lights go off?
     
  5. rs18alpha

    rs18alpha Subscriber

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    The CO2 goes off an hour before the lights go off.
    Thanks for the feed back. What do you think about the light duration?
     
  6. DutchMuch

    DutchMuch Junior Poster

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    I do six hours, another tank of mine does like 12 so I think it isn't your lights exactly. You could experiment and lower to six hours if you want, see what results you get after a few weeks.
     
  7. Jason King

    Jason King barrreport.com
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    Let's start with getting the co2 sorted..

    What is your current pH? Aim for a 1-1.2 pH drop and ignore bps as a measurement and use it as guide until you get that 1ph drop.

    At the same time making sure your flow in the tank is enough, look for dead spots or you will get algae instantly. I've just had this problem myself even if I already thought I had enough flow I was wrong.

    With a new tank keep the lighting par lower. if dimmable dimm them, if not raise the light fixture higher above the tank.

    It doesn't matter if it's T5 or LED if the light par is to high for the setup you will get algae with any form of light.

    So first sort the co2 and flow and keep it at lower light, after you are sure co2 and flow are setup correctly up the lighting a little at a time and then work from there.

    For the first week or so you don't need to add any ferts or a small amount if any.
     
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  8. rs18alpha

    rs18alpha Subscriber

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    Great info Jason! Thanks!!
    What's the best time to check the PH?
    The CO2 goes on 1 hour before the lights come on.
    Should I check before the CO2 starts?
    Should I then wait til after the lights come on?
     
  9. Jason King

    Jason King barrreport.com
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    Check you default pH first thing before co2 comes on and then after the co2 comes on say 1-1.5 hour/s later check if you have a 1 pH drop difference.
     
  10. Phishless

    Phishless Lifetime Member
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    I would test 1 hour before CO2 shuts off to get lowest pH.
    Put an air stone(degassed) in a cup of your water for a half hour and test that for your high pH reading.
     
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  11. rs18alpha

    rs18alpha Subscriber

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    Sounds good. I'll give it a go.
     
  12. rs18alpha

    rs18alpha Subscriber

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    Ok, I'll check that out.
     
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