Starting a 40 gallon long.. - Tropical Fish Keeping - Aquarium fish care and resources
 
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post #1 of 2 Old 02-01-2013, 07:39 PM Thread Starter
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Starting a 40 gallon long..

Would 1 T8 bulb be sufficient for a low to moderate plants? I know usually you would want 2 tubes over a 4ft aquarium, but with a 40 long being more shallow was wondering if 1 would do.
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post #2 of 2 Old 02-03-2013, 01:08 PM
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Originally Posted by smit3183 View Post
Would 1 T8 bulb be sufficient for a low to moderate plants? I know usually you would want 2 tubes over a 4ft aquarium, but with a 40 long being more shallow was wondering if 1 would do.
It depends upon the tube length, tank length and depth, and the type of tube. Assuming the tank length is 4 feet and height is 16 inches [you call it a 40g long], you could have one 48-inch T8 tube. A good Daylight tube around 6500K would suffice for low to moderate light plants. Crypts, green-leaf swords, Anubias, Java Fern, Java Moss, Brazilian Pennywort, and most floating plants would or should manage.

A single tube T5 with a 48-inch HO tube would open up options more, but shouldn't bee too much with a good cover of floating plants. Finding single-tube T5 fixtures is not easy.

Byron.

Byron Hosking, BMus, MA
Vancouver, BC, Canada

The aquarist is one who must learn the ways of the biologist, the chemist, and the veterinarian. [unknown source]

Something we all need to remember: The fish you've acquired was quite happy not being owned by you, minding its own business. If you’re going to take it under your wing then you’re responsible for it. Every aspect of its life is under your control, from water quality and temperature to swimming space. [Nathan Hill in PFK]
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