K R Brown Posted January 21, 2010 Report Share Posted January 21, 2010 currentlly shut down my african tank and now have pictus and angels but dont want to buy new lights at the moment still have my ocean blue ones and wondering what will grow easy in this light and be suitable for angelfish >? Quote Link to comment Share on other sites More sharing options...
matthewY Posted February 12, 2010 Report Share Posted February 12, 2010 Keen to also know.... Been reading on lights after seeing the LED red / blue "growing lights" around. Idea looks good but I wonder if the red / bule combos ones have the wrong ration for aquarium plants (usually 3 reds to 1 blue)... I keep reading that blue is good for vegative growth, red for flowering... So most aquatic plants dont flower, hence should planted tanks be heavy in blue and soft in red (say a 3 blue leds to 1 red led?) Looking at doing my own diy led setup to "support" my normal tube lights... Quote Link to comment Share on other sites More sharing options...
alanmin4304 Posted February 13, 2010 Report Share Posted February 13, 2010 Blue tends to make plants grow in a compact form and red makes them tall and skinny. Quote Link to comment Share on other sites More sharing options...
matthewY Posted February 13, 2010 Report Share Posted February 13, 2010 would that imply 3 blues to 1 red would be a good mix for lawn style growth, mosses and ferns? Looking at getting a bunch of 150,000mcd led's off ebay, maybe 10 to 15W of blue and red together to sit next to my main light. Quote Link to comment Share on other sites More sharing options...
alanmin4304 Posted February 13, 2010 Report Share Posted February 13, 2010 To be honest I don't know. I have been shown a book with graphs of the wavelengths that do certain things but I have lost contact with the person with that info. There are specific wavelengths of light that encourage certain things with plant growth not just blue or red. If I remember correctly there were two or three wavelenghts of blue for instance so it is not just red and blue you want. Quote Link to comment Share on other sites More sharing options...
phoenix44 Posted February 13, 2010 Report Share Posted February 13, 2010 yeah, you need more than JUST blue. you can run a blue light in conjunction with other spectra, and that will encourage flowering. Quote Link to comment Share on other sites More sharing options...
alanmin4304 Posted February 14, 2010 Report Share Posted February 14, 2010 Last winter I grew a selection of emersed plants under artificial light. There were 3 lumiflor and one blue tube and I don't think they behaved any differently to before I replaced one with blue. Quote Link to comment Share on other sites More sharing options...
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