wpg calculation
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 05-26-2004, 12:08 PM   #1
Planted Tank Obsessed
zapus's Avatar
PTrader: (1/100%)
Join Date: May 2004
Location: Athens, Georgia
Posts: 328

wpg calculation

When calculating wpg, do you use the nominal tank size or the actual volume? With the nanocube it makes quite a bit of difference as its listed as a 12 gallon, but actual volume is closer to 8 gallons...
zapus is offline   Reply With Quote
Sponsored Links
Old 05-26-2004, 12:39 PM   #2
Wannabe Guru
ninoboy's Avatar
PTrader: (0/0%)
Join Date: Jan 2004
Location: Las Vegas , Nevada
Posts: 1,261

Wpg rule of thumb won't apply on smaller tank anyway. My 10gl planted has around 5wpg .
Eheim Pimp #21 (2) 2028 and auto feeder
ninoboy is offline   Reply With Quote
Old 05-26-2004, 01:10 PM   #3
rumples riot
Planted Tank Enthusiast
rumples riot's Avatar
PTrader: (0/0%)
Join Date: May 2003
Location: Blackwood South Australia
Posts: 644

I think that nominal tank volume is used in the watts per gallon rule, but as nino boy infered the rule is only a guide.

Eheim Pimp Club member #3: Scribe to the Eheim Pimp Club

90 gallon, CO2 dupla injection, Dupla substrate heating, Dupla Laterite with iron stone substrate, Aquastarlight future 3 x 150 metal Halides, Eheim 2026 pro2's and heavily planted with Discus
rumples riot is offline   Reply With Quote
Old 05-26-2004, 02:13 PM   #4
PT Biologist
SCMurphy's Avatar
PTrader: (4/100%)
Join Date: Oct 2003
Location: Maryland USA
Posts: 3,213

We don't worry about the 'actual volume' of the tank when filled with fish and rocks and substrate and such. Like Paul said it is more of a guideline. The problem is that it isn't really the volume we are worried about but the area and depth (which calculates into volume, yes I know). You want sufficiently strong light spread completely across the area of the bottom of the tank. This is in turn inhibited by the depth (sort of). There is a falloff of available light from a lightbulb as you move away from the lightbulb. The water isn't really deep enough to compound this problem in most of our tanks, it is just a failing of the type of light source.

Aquascape? I'm a crypt farmer.

It's a fine line between fishing and standing on the shore looking like an idiot.

That IS an aquascape, it's titled "The Vacant Lot".
SCMurphy is offline   Reply With Quote

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not 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

Similar Threads
Thread Thread Starter Forum Replies Last Post
Sand mesh/mm calculation balasharkfreak Substrate 5 08-03-2004 04:59 PM

All times are GMT. The time now is 05:35 PM.

Powered by vBulletin®
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Copyright Planted Tank LLC 2012