best lighting for 20 gal. planted tank?? - Page 2 - Tropical Fish Keeping - Aquarium fish care and resources
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post #11 of 11 Old 03-26-2013, 07:40 AM
JDM
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Quote:
Originally Posted by AbbeysDad View Post
I'm no expert, but I'm not sure that two t5 tubes is too much light if/when one is a "color enhancing tube" as I always thought these were "more show than go", leaving just the one 6700k t5 daylight tube. Two daylight tubes may be too much.

(On the other hand (thinking out loud [smell the smoke]), on my 60g tank that's two feet high, I wonder if I might just need two daylight tubes to support rooted plants).
The depth of the tank makes a fairly substantial difference in how effective the lighting will be for low substrate plants. I think for my setup which has the light about 20" off the bottom I am pushing it. If I even had an 18" tank it would make a difference. I tried raising a plant a few inches from the bottom onto a driftwood and it grew much better there, same light, no shade, just that much closer to the source.

Jeff.


Total years fish keeping experience: 7 months, can't start counting in years for a while yet.

The shotgun approach to a planted tank with an LED fixture

Small scale nitrogen cycle with a jar, water and fish food; no substrate, filter etc
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