What's my wpg?
Planted Tank Forums
Your Tanks Image Hosting *Tank Tracker * Plant Profiles Fish Profiles Planted Tank Guide Photo Gallery Articles

Go Back   The Planted Tank Forum > Specific Aspects of a Planted Tank > Lighting

Thread Tools Display Modes
Old 05-30-2005, 06:24 PM   #1
Algae Grower
Cord's Avatar
PTrader: (0/0%)
Join Date: Sep 2004
Location: Lansing, Michigan
Posts: 91

What's my wpg?

Okay, this may be a really simple question, but I don't know the answer.

I have a 30" light sitting over a 10g tank. (Long story involving moving in a very small car. I'm just trying to make things work with what I have right now.)
The light is 65w.

So, because roughly only half of the light is actually over the tank, does that mean that my tank is getting 3.25wpg? Or is it still getting 6.5wpg?

If anyone can explain the science behind the answer, that would be great.
Cord is offline   Reply With Quote Quick reply to this message
Sponsored Links
Old 05-30-2005, 08:58 PM   #2
Rex Grigg
Planted Tank Guru
Rex Grigg's Avatar
PTrader: (65/100%)
Join Date: Dec 2002
Location: Portland Orygun
Posts: 9,600
Send a message via ICQ to Rex Grigg Send a message via AIM to Rex Grigg

If the light is not getting into the tank then it doesn't count.
Rex Grigg is offline   Reply With Quote Quick reply to this message

Quick Reply

Register Now

In order to be able to post messages on the The Planted Tank Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:
Your Location. As precise as you feel comfortable with.
Security Question
While balancing on a piece of wood, two inches by four inches known as a 2x4, John and his friend Sally both spotted a dalmatian inside of a truck with sirens. The animal with John and Sally is a _ _ _?
Please select your insurance company (Optional)


Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.

Thread Tools
Display Modes

Posting Rules
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

All times are GMT. The time now is 06:11 AM.

Powered by vBulletin®
Copyright ©2000 - 2015, Jelsoft Enterprises Ltd.
Copyright Planted Tank LLC 2012