Lighting Question
Tropical Fish

Tropical Fish Keeping - Aquarium fish care and resources » Freshwater Fish and Aquariums » Beginner Freshwater Aquarium » Beginner Planted Aquarium » Lighting Question

Lighting Question

This is a discussion on Lighting Question within the Beginner Planted Aquarium forums, part of the Beginner Freshwater Aquarium category; --> I have a hypothetical question. I'm not sure exactly how to phrase it, so I'll ask it through an example. Part of me thinks ...

Reply
Old 09-09-2008, 10:47 AM   #1
 
Lighting Question

I have a hypothetical question. I'm not sure exactly how to phrase it, so I'll ask it through an example. Part of me thinks it's a stupid question, but I want to be sure.

Let's assume that for the plants in Tank X, the ideal lighting is 100 watts for 8 hours a day. Assuming all other variables are equal, would the plants recieve the same benefit from a 100 watt light for 8 hours a day as they would from recieving 50 watts of light for 16 hours a day?

The reason I ask, I'm fiddling with the length of my light cycles, trying to find the right balance, and wanted to know if using half the power of my lights for part of the day truly equals half the benefit to the plants.

To rephrase it another way, is using half the wattage for 2 hours equivalent to using full wattage for 1 hour?

Thanks in advance for any help.
qpc68 is offline   Reply With Quote
Old 09-10-2008, 12:21 AM   #2
 
onefish2fish's Avatar
 
no, the amount of time the lights are on with half wattage does not equal half that amount of time with full wattage.

you need aprox. 2-3 watts per gallon (depending on plants lighting requirements) with some kind of Full Spectrum light bulb(s)
onefish2fish is offline   Reply With Quote
Old 09-10-2008, 09:48 AM   #3
 
What I figured. Thanks.
qpc68 is offline   Reply With Quote
Old 10-07-2008, 10:32 PM   #4
 
klosxe's Avatar
 
Agree with the second post. Good answer!
klosxe is offline   Reply With Quote
Reply

Similar Threads
Thread Thread Starter Forum Replies Last Post
Lighting question jerewhon Freshwater Aquarium Equipment 4 01-12-2010 06:32 PM
New here: Lighting question Kratz Beginner Freshwater Aquarium 2 05-13-2009 11:30 AM
a lighting question and a tank question beetlebz Freshwater Aquarium Equipment 2 12-12-2007 11:14 PM
Another lighting question- threnody Beginner Freshwater Aquarium 7 06-20-2007 07:51 AM


Thread Tools Search this Thread
Search this Thread:

Advanced Search



All times are GMT -5. The time now is 09:46 AM.