Low/Med/High? Clarification needed - The Planted Tank Forum
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post #1 of 2 (permalink) Old 01-15-2013, 08:12 AM Thread Starter
Algae Grower
Join Date: Dec 2012
Location: United states
Posts: 39
Low/Med/High? Clarification needed

My tank holds 180l of water and until today I thought that meant I had a 50g. It turns out I have a 47.5 and change G

I have 2x35w bulbs. One is 9000k the other is 4100k. Where does that land me in terms of lighting? Both tubs are T5HO. And the goal is to carpet HC and BMS so in relation to light and light alone where do I stand?
malloy85 is offline  
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post #2 of 2 (permalink) Old 01-15-2013, 10:29 AM
Planted Tank Obsessed
Join Date: Sep 2012
Location: Hampstead, NC
Posts: 339

I have a 50G tank and a dual T5HO light fixture. My fixture takes 48" bulbs which are 54 watts each. After reading a ton of information about various types of lights and different methods to determine output I settled on the explanation at Lighting an Aquarium with PAR instead of Watts The Par value is effected more by the distance from the light to the plant, or substrate than it is by the volume or number of gallons. I use just one of my bulbs which translates to low to medium levels as interpolated from the Par chart using 18" as a distance.
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