New to planted tank. wattage question.
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


Reply
 
Thread Tools Display Modes
Old 10-20-2005, 10:15 AM   #1
Ed209
Newbie
 
PTrader: (0/0%)
Join Date: Oct 2005
Location: Canada
Posts: 2
Default

New to planted tank. wattage question.


Hello. I just got a new light fixture. A power compact coralife 48 4x 65W.
Two bulbs are 10000K daylight and two are true actinic blue.
I read Rex's page on lighting. My question is: If I replace these bulbs with something more suitable for a planted tank,could I buy bulbs with more wattage?
Like 96W bulbs. Just wondering if the ballast is only rated for a certain wattage.
Thanks.
Ed209 is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 10-20-2005, 12:44 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
Default

You might be able to get away with it. But chances are the ballast won't drive the higher wattage bulbs. Also since 96 watt bulbs are 34" long it might be hard to fit them in there.
Rex Grigg is offline   Reply With Quote
Old 10-20-2005, 04:43 PM   #3
malkore
Planted Tank Guru
 
malkore's Avatar
 
PTrader: (0/0%)
Join Date: Nov 2003
Location: Lincoln, NE
Posts: 2,165
Default

What size tank? 4x65w is plenty for even a 75gallon...hell even a 90 gal would still be at 2.8wpg, but you'd have dark areas, or a lack of penetration to the substrate if it's a 90 tall.

Otherwise, no the Coralife ballast won't drive a 2x96 and 2x65 at the same time, and no way will you get a 96w to fit properly in there.
__________________
Malkore
Filstar XP2 PIMP #3
Visit my aquarium pages - see specs on my tanks, and photos of how they've evolved
malkore is offline   Reply With Quote
Old 10-20-2005, 10:19 PM   #4
Ed209
Newbie
 
PTrader: (0/0%)
Join Date: Oct 2005
Location: Canada
Posts: 2
Default

Thanks for the information guys. Now I know the bulbs are different lengths too.

Malkore: My tank is a 72 gallon All Glass bowfront. I guess there's plenty of light. The water was looking pretty green when I got home from work. lol
I'll hold onto these bulbs. I read you change them in 9 months to a year. I'll put in 6700K bulbs at that time.

Rex: You're Planted Tank Guide is excellent. Had to add it to my bookmarks.

Ed209 is offline   Reply With Quote
Old 10-20-2005, 11:50 PM   #5
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
Default

You run those bulbs till they die.

Thanks.
Rex Grigg is offline   Reply With Quote
Old 10-21-2005, 03:25 PM   #6
malkore
Planted Tank Guru
 
malkore's Avatar
 
PTrader: (0/0%)
Join Date: Nov 2003
Location: Lincoln, NE
Posts: 2,165
Default

I tried running mine til they died, but after 2 years they were dim and the plants weren't doing so great.
I'd change after 2 years of 12 hour daily use, but certainly you can run them longer than 9 months. 9-12 months is for NO tubes, not PC's.
__________________
Malkore
Filstar XP2 PIMP #3
Visit my aquarium pages - see specs on my tanks, and photos of how they've evolved
malkore is offline   Reply With Quote
Old 10-21-2005, 06:20 PM   #7
shalu
Wannabe Guru
 
shalu's Avatar
 
PTrader: (0/0%)
Join Date: Jan 2003
Location: San Jose, CA
Posts: 1,675
Default

I measured my 3 year old 55w bulb's light output, not much difference from a 6 month's old one, or a new one.
__________________
Truvu 100g Flourite, wet/dry, AHSupply 302w PC, PinPoint controller
10gallon15w T6+15w T8
55gallon40w T6 ODNO4x, no CO2. Discus grow out.
10gallon Tonina tank, 2x15w T6 ODNO 4x
---------------------
I will do aquascapes after I collect all the plant species and grow them to perfection.
shalu is offline   Reply With Quote
Reply

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


All times are GMT. The time now is 07:35 AM.


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