Grow vs show

Discussion in 'The Lounge' started by f-fish+plants, Aug 12, 2017.

  1. f-fish+plants
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    f-fish+plants Aquascaper

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    Anybody running different lights or light settings for growing vs showing of your planted tank?

    Is please share ...

    Thanks Ferdie
     
  2. Hendre
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    Hendre Plant menace

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    I'm going to be installing LEDS in my 250lt soon, white for day time and blue for at night.

    This way I can keep the tank lit all day with less algae (I hope) and see the fish the whole time. Blue lights for the evenings because the fish in there are mostly nocturnal and play when the lights are off, and they can't see blue well. :)
     
  3. Pierré Schoonraad
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    Pierré Schoonraad Green fingers

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    Lighting stays the same for growing and showing. I have tanks on 2 different timers though. 1 set on in the mornings and the other in the afternoon. Practical reason is I don't stress the fishes in the mornings, for feeding, by switching on lights. Breeding rack on seperate light as there is no plants in that needs growing and lights get switched on as needed.

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  4. f-fish+plants
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    f-fish+plants Aquascaper

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    Thanks....
    So the reason why I am asking .. I am very pleased with the growth I am getting on Blackjack.

    [​IMG]

    But the light is 4000k - so very yellow - esp at night and compared to the other tanks. For growth I really can not complain about this 15W light.

    So I have now added two to 36 degrees, - had to abandon my algae experiment since I had a snail explosion and because the algae was MIA they went after the Buce..... but I would like to see if the initial growth on blackjack was just luck or if these light have some growth merit.

    [​IMG]

    I have removed 3 LED strips and added the two 1200lm lights mostly "focused" on the buce but still have enough light for the other plants..

    Only thing it really is not lekker to look at a yellow tank all the time - make sapphire glass pointless.

    Hopping the buce recover form being salad .. trust the extra light will help.

    Later Ferdie
     
  5. Pierré Schoonraad
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    Pierré Schoonraad Green fingers

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    Now I see where your going with this. Were you happy with the color light the LED strips gave you for viewing? If it is yes why not keep them in place and just switch them on when you are in front of the tank.

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  6. f-fish+plants
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    f-fish+plants Aquascaper

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    Yeah .. think that is what I will be doing ... but must say I like your idea of a different light period / switch for the growing lights. Need to go wire a controller for that.
     
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  7. Hendre
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    Hendre Plant menace

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    Main thing for me is the night viewing of my fish so I don't have to sit with a torch.
     
  8. Clare
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    Clare Aquascaper

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    I had to replace two of my 6500k GU10 to 3000k warm white as the young cories were skittish and I realised that the cool white may have been too bright for them as now with the warm white, they come out when the lights are on and start foraging (instead of skooming off to hide). I'm going to see how the yellow light works for the plants - if that doesn't work out well, I will have to stain my water with rooibos tea.

    The emersed tank has 2 x 5w 6500k GU10 downlights and I'm seeing a lot of good new growth. For the cube, still the same - 6500K GU10 lamps.
     
  9. Clare
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    Clare Aquascaper

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    3000k 2 x 5w GU10 downlights

    [​IMG]

    6500k 2 x 5w GU10 downlights

    [​IMG]

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  10. f-fish+plants
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    f-fish+plants Aquascaper

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    So I realize that the 4000K vs 6500k debate and plant growth is largely irrelevant since spectrum spread, CRI and PUR-efficiency - i.e. getting growth going for the light that does hit the leaves is all needed for a real conversation. Since we have no easy way to lab the numbers one is required to experiment.

    Clare will be interesting to see how your plants do under the 3000k - in theory I suspect this means more red is going into the tank.

    Later Ferdie
     
  11. Clare
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    Clare Aquascaper

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    Yeah it appears to be a lot more red in the white as it's very yellow, like tannins in water. To be honest, I quite like it and my fish are happy but I'm more worried about the plants under that spectrum. I guess I should go off to Rotala Butterfly and check the calculations

    I just realised I said 2 x 3000 5w globes - my bad, it's 4w globes. Got them on special - twin pack of R80 and another GU10 lamp holder for R20.
     
  12. Joshua Tree
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    Joshua Tree Valued Contributor

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    Is this the same blue used by marines? I was always told you grow algae with actinics...
     
  13. f-fish+plants
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    f-fish+plants Aquascaper

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    Like a boss ... hope it is not running 24x7
     
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  14. Pierré Schoonraad
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    Pierré Schoonraad Green fingers

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    Now we get to the technical side of lighting. IME blue lights let algae grow very nicely, but once the tank has balanced it has no significant effect. Talking specificly refering to Beamworks LED lights. I think most companies that makes lights for aquariums got to their magical figures by testing it on specific plants, eg stems, and not anubias/buce which require different lighting. For that reason I will say that every planted tank has it's own lighting requirements which you need to test yourself and can't be calculated with a formula.

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  15. Hendre
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    Hendre Plant menace

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    @Joshua Tree nope. Just standard blue LED lights

    I don't have money for marine :p
     
  16. f-fish+plants
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    f-fish+plants Aquascaper

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    Anecdotal at this stage, 4 hours into the light cycle and things are pearling in the tank. No did not do a WC or fertz or anything actually - have not even fed the fish.

    Lets see.

    Later Ferdie
     
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