livefishguy124
Aquarium Advice FINatic
- Joined
- Feb 11, 2015
- Messages
- 749
Don't really want to get in to a debate over this but I just don't want people to read this and think they must strive for a particular wavelength when selecting tubes or LEDs. For the purpose of this discussion, fluorescent tubes emit enough energy in all of the photosynthetically active spectrum to grow plants in our aquarium be it a 'special tube' sold at the local fish store or a shop light fluorescent from the general hardware store. I have never come across any plants showing blue or red wavelength deficiencies or any data to suggest that this may even be possible. Even if it were, who's going to stare at a red or blue tank? Plants do just fine using 'ordinary' bulbs. I've used them myself. Much better to focus your attention on light intensity, carbon and nutrients than worry about wavelengths.
When Tom Barr and co pencilled the EI method their focus was on light intensity, not the wavelength.
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Too many people worry about light and so end up pummelling the plants with photons only to end up in a mess because they didn't stop to think about the importance of co2 and nutrients. Keep light low, carbon good and nutrients sufficient and you will find even some of the 'high light' plants will grow just find albeit a little more slowly. Use higher light intensity, keep carbon and nutrients sufficient and the same plant will grow without any problems except it will grow much quicker.
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agreed, i don't want to get into a debate either, but a plant bulb really is not to much more and doesn't look red or blue necessarily.