02-04-2011, 11:51 PM
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Originally Posted by El Nandez
Thanks for the help, I currently have a 30g 20w bulb will be upgrading that soon. In my tank right now I have a couple of asias, and two swords. I orderd a bundle package of rooted plants from sweetaquatics.com fish I currently have are 2 zebra dinos and one black ghost knife, I sold my clown loach.
With a good tube the light will be fine for the plants you mention. A "daylight" tube with a kelvin rating between 6000K and 7000K will work well. You can buy these at hardware stores (and someone mentioned Walmart) for a few dollars; GE, Phillips and Sylvania all make them, under names similar to "daylight." Phillips calls their tube Daylight Deluxe, I have them on my tanks, they are 6500K.
You will need fertilizer, swords are heavy feeders. Liquid will be sufficient with that low/moderate light. Seachem's Flourish Comprehensive Supplement for the Planted Aquarium
is the best I've so far found in a preparation.
P.S. You probably know the knifefish will need a much larger tank, I assume it is a small juvenile presently, but it will (or should) grow. You may have to get floating plants, knifefish do not appreciate light, they are nocturnal in nature and live in very dim waters.