Lighting basics - Discussion thread

Discussion in 'Planted Tank Equipment' started by Hanekka, May 8, 2014.

  1. Hanekka
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    Hanekka Moderator Staff Member

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    Wow. Nice. Will read through this tomorrow (my head is muff by now)

    Just one tiny thing: the tables aren't showing properly.
     
  2. R.C.
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    R.C. Moderator Staff Member

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  3. Joshua Tree
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    Joshua Tree Valued Contributor

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    Goodness me "Lighting basics for people new to the Aquascaping hobby". I look forward to your thread on advanced lighting ;) :D
     
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  4. wolf
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    wolf Valued Contributor

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    Wow wil have to wake up and read this again
    Thanks this help alot
     
  5. Luis Embalo
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    Luis Embalo Valued Contributor

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    Superb article, very well written, and easy to follow.. I would place the crypts at even lower level than the ferns.. but superb article..
     
  6. R.C.
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    @tyronegenade, just proof read and check for me if everything is correct now.

    It's very late here and I'm very tired. I'll split the posts after guide into a new discussion thread tomorrow.
     
  7. Biks
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    Biks Noob

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    Wow thank u so much for clearing this subject up for me , Blerrie well written :occasion14:
     
  8. tyronegenade
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    tyronegenade Specialist

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    Yip, all OK.

    @Luis: Yes, I think some plants could go lower and others maybe higher. I was naughty and used the data without seeing it first hand. I managed to find the book cheap online and have ordered it. I hope for more info from it... But, my old tank shown there, had Rotala colorata growing in it (not well, but good enough to keep it going for several years). So I can accept the PPFD data for the Rotala colorata. I doubt other species would perform as well under such low light. I would love data on Anubias. They seem to grow in the dark...

    Thanks for the positive comments. It is very hard making a complicated subject "simple." If you are only half confused I count that as progress.
     
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  9. Chongkie
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    Chongkie Aquascaper

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    I think i might go abit :toothy12:

    Woohoo, I think i have progressed.. hehe.

    Great article and thanks for including LEDs. Most of the lighting articles don't include for LEDs, due to them being a "new" thing, but I'm glad that you have included that in your article :icon_thumright:
     
  10. tyronegenade
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    tyronegenade Specialist

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    A great deal of credit must go to Wolf who did the LED strip experiments. Greystoke's LED data is really encouraging, if we can get actual PPFD measures from LED arrays made with Cree LED chips that would be very useful. I suspect they will blow us away with high PPFD values.
     
  11. f-fish+plants
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    f-fish+plants Aquascaper

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  12. tyronegenade
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    tyronegenade Specialist

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    Hello, I got hold of the book the plant lighting data is from (a really good book by the looks of things, I havn't had a chance to read it in its entirety) and have adjusted the data in the table. The book gives a range of lux value instead of the averages I obtained from a defunct Russian site. The data is in lux and I used broad spectrum solar and cool white conversion factors to arrive at an average range. Luis, how do the numbers compare with your experience?

    Incidentally, there are now 5630 SMD LED strips on sale that are 3x brighter than the 5050 SMDs that Wolf has over his tank. LED technology is advancing double quick. Based on Wolf's data a single strip of these 5630s may be enough for a planted tank. We will know in a few weeks time... I have them on order off Ebay.
     
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  13. Dylan S
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    Dylan S Plant menace

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    Clearly my lighting is insufficient! Very well written and explained.

    Is there anyone in Cape Town who custom makes LED strips. Have a closed tank and it would be nice to add some extra LED lighting around the main light in the Centre. Nothing fancy just a waterfroofed strip that goes all the way around. Doesn't even need to be fitted into the actual lid. Can just have suction cups that will keep it in place.
     
  14. tyronegenade
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    tyronegenade Specialist

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    Given the spread of the LED lights, having it around the around the inside of the lid isn't a good idea. Ideally, you want it not more than 10 cm above the water and about dead-center over the water otherwise you will lose a lot of light.

    The LED strips are very user friendly. See Wold's thread: http://www.apsa.co.za/xenforo/threads/wolfs-led-diy.11072/ You can get solderless snap on connectors (but about 1 in 3 are defective...). The connectors, strips and adapters can be got cheaply on Ebay.

    A word of warning: don't increase the light unless you are going to increase the CO2 and fertilizer as well, otherwise you will have algae issues.
     
  15. saaquascaping
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    saaquascaping Green fingers

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    very nice table showing the different PPFD levels for the different species, interesting
     
  16. tyronegenade
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    tyronegenade Specialist

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  17. Hanekka
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    Hanekka Moderator Staff Member

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    Hi guys! I see ACDC has new LED units for aquariums.

    Here's a link to the catalogue: http://www.acdc.co.za/Catalogue/ACDCCATALOGUE.html#/742
    (bottom of page 741)

    For those who can't/don't want to download the catalogue:
    LEDs included are:
    White (12 000K)
    Royal Blue (450-465 nm)
    UV Blue (410-420 nm)
    Red (660 nm)
    Green (520-525 nm)

    Sizes:
    237 x 220 x 35 mm (L x W x H) - 30 W (LED Power)
    396 x 220 x 35 mm (L x W x H) - 80 W (LED Power)
    662 x 220 x 35 mm (L x W x H) - 150 W (LED Power)

    The units can also simulate weather conditions (lighting, dawn, sunrise, daytime, etc) and up to 20 units can be synchronized to each other.

    I haven't seen these around yet, but have started to look around for prices. Anyone else seen these yet?
     
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  18. Wazi
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    Wazi Green fingers

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    Dont even bother with ACDC. My wife works for them and even she cant get pricing. Iv enquired multiple times and all i get from them is there is no price or stock at the moment.
     
  19. Hanekka
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    Hanekka Moderator Staff Member

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    Wow. LOL
    If I manage a miracle and get pricing etc. is ACDC worth it? How's the general quality etc?
     
  20. Wazi
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    Wazi Green fingers

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    General quality is very good. Pricing is a bit more expensive on certain items but the biggest problem with them is the stock. They dont always keep on hand.
     

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