Incandescent or Fluorescent?
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 > General Planted Tank Forums > Low Tech Forum


Reply
 
Thread Tools Display Modes
Old 11-18-2007, 02:45 AM   #1
tranceFusion
Algae Grower
 
PTrader: (0/0%)
Join Date: Nov 2007
Location: Frederick, MD
Posts: 12
Default

Incandescent or Fluorescent?


I just bought a Eclipse Corner 5 Gallon. I want to setup a low-light tank. It comes with a 15W Incandescent bulb, but there is a 11W Fluorescent that you can buy that will also work with the system for like $13. Is this going to be better or worse than the incandescent for plant growing purposes? Thanks!
tranceFusion is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 11-18-2007, 03:16 AM   #2
swylie
Planted Tank Enthusiast
 
swylie's Avatar
 
PTrader: (0/0%)
Join Date: May 2007
Location: Frederick, MD
Posts: 664
Default

Welcome. You'll want a fluorescent, but I'm not sure the 11W is the one you want. It will put out a lot more light than the 15W incandescent for sure, but it probably still won't be enough light. I assume your hood has a traditional screw-in light bulb fixture, so you can put in any screw-in compact fluorescent bulb you want to. Assuming you get a spiral compact fluorescent, I'd try to get one that burns about 20W, though it'll be rated as equivalent to a 75W incandescent or something.

By the way, check out http://www.rexgrigg.com while you're doing research. His site should answer a lot of questions regarding planted tanks.
swylie is offline   Reply With Quote
Old 11-18-2007, 03:39 AM   #3
tranceFusion
Algae Grower
 
PTrader: (0/0%)
Join Date: Nov 2007
Location: Frederick, MD
Posts: 12
Default

Quote:
Originally Posted by swylie View Post
Welcome. You'll want a fluorescent, but I'm not sure the 11W is the one you want. It will put out a lot more light than the 15W incandescent for sure, but it probably still won't be enough light. I assume your hood has a traditional screw-in light bulb fixture, so you can put in any screw-in compact fluorescent bulb you want to. Assuming you get a spiral compact fluorescent, I'd try to get one that burns about 20W, though it'll be rated as equivalent to a 75W incandescent or something.

By the way, check out http://www.rexgrigg.com while you're doing research. His site should answer a lot of questions regarding planted tanks.
thanks for the link! Yes, it is a regular screw in fixture. However, it says to use only a 15 watt incandescent or an 11 watt fluorescent.. Can I ignore the directions??
tranceFusion is offline   Reply With Quote
Old 11-18-2007, 02:00 PM   #4
swylie
Planted Tank Enthusiast
 
swylie's Avatar
 
PTrader: (0/0%)
Join Date: May 2007
Location: Frederick, MD
Posts: 664
Default

Quote:
Originally Posted by tranceFusion View Post
thanks for the link! Yes, it is a regular screw in fixture. However, it says to use only a 15 watt incandescent or an 11 watt fluorescent.. Can I ignore the directions??
You can ignore the directions, sort-of. You should be concerned about space and heat. An X watt bulb is going to produce X watts of heat regardless of what kind of bulb it is. If you use a bulb that makes more than 15 watts of heat you run the risk of melting the hood and maybe even fire. If it doesn't fit, it doesn't fit. Those spiral bulbs are bigger than incandescents, and they have a weird shape.

So I shouldn't officially recommend you use anything larger than a 15w (actual watts, not incandescent equiv watts) fluorescent bulb. 15W would probably be enough to grow plants slowly. That said, I have a 26W over my 5g tank. I enlarged the vent holes though...
swylie is offline   Reply With Quote
Old 11-18-2007, 02:59 PM   #5
eyebeatbadgers
Planted Tank Guru
 
eyebeatbadgers's Avatar
 
PTrader: (62/100%)
Join Date: Aug 2007
Location: Hendersonville, TN
Posts: 2,485
Send a message via AIM to eyebeatbadgers
Default

I'm using a 20 watt and 26 watt spiral fluorescent bulb over my 10 gallon tank, and it's enough light to grow plants slowly and algae quickly !! I got the 6500K lights from walmart, they were about 7 bucks total, if I remember correctly. These lights do put off quite a bit of heat, mine are in clamp on desk lamps, and those puppies get really hot by the end of the day. I'd look into modification of your fixture if at all possible.
__________________
eyebeatbadgers is offline   Reply With Quote
Old 11-18-2007, 03:17 PM   #6
swylie
Planted Tank Enthusiast
 
swylie's Avatar
 
PTrader: (0/0%)
Join Date: May 2007
Location: Frederick, MD
Posts: 664
Default

Quote:
Originally Posted by eyebeatbadgers View Post
I'm using a 20 watt and 26 watt spiral fluorescent bulb over my 10 gallon tank, and it's enough light to grow plants slowly and algae quickly !! I got the 6500K lights from walmart, they were about 7 bucks total, if I remember correctly. These lights do put off quite a bit of heat, mine are in clamp on desk lamps, and those puppies get really hot by the end of the day. I'd look into modification of your fixture if at all possible.
Speaking of walmart... The GE bulbs they sell there come in packaging that pops open and reseals without tearing anything. You could buy a selection of bulbs, try them out, and return the ones you don't want.
swylie is offline   Reply With Quote
Old 11-18-2007, 04:44 PM   #7
tranceFusion
Algae Grower
 
PTrader: (0/0%)
Join Date: Nov 2007
Location: Frederick, MD
Posts: 12
Default

I'm not so worried about plants growing as not dying. I am setting up this tank to breed snails to feed to my brackish pufferfish. I just wanted something aesthetically pleasing, rather than a bucket with a bunch of snails in it. That's why I went with the corner kit that had the light and filter hidden away in the lid - I don't think I want to modify it, unless there is something I can do to help it out without making it look hideous?

If I just stick with Java Fern, Java Moss, etc. I can get away with the 11w fluorescent, right?

I placed a layer of laterite under the gravel, if that means anything
tranceFusion is offline   Reply With Quote
Old 11-18-2007, 04:54 PM   #8
epicfish
Planted Tank Guru
 
PTrader: (266/100%)
Join Date: Sep 2006
Location: Northern California
Posts: 9,417
Default

Yes, you'll get away with it with 11 watts of fluorescent lighting.
epicfish is offline   Reply With Quote
Old 11-18-2007, 06:49 PM   #9
tranceFusion
Algae Grower
 
PTrader: (0/0%)
Join Date: Nov 2007
Location: Frederick, MD
Posts: 12
Default

ok, i put in a 13w fluorescent. Hopefully I don't burn the place down

It was one of those GE light bulb replacements. They also had some that were daylight (6500k). However, these bulbs emitted half the lumines that the regular ones did. Should I have gotten the daylight anyway?

And has anyone replaced the fixture in one of these boxed kits before?
tranceFusion is offline   Reply With Quote
Old 11-26-2007, 05:41 AM   #10
dekstr
Wannabe Guru
 
dekstr's Avatar
 
PTrader: (2/100%)
Join Date: Oct 2007
Location: Ontario, Canada
Posts: 1,168
Default

The only use I see for incandescents are that they are good for basking turtles since they produce so much heat! Even then, you could go with like a real heating lamp.
dekstr is offline   Reply With Quote
Old 11-26-2007, 07:31 AM   #11
dlawlor
Algae Grower
 
PTrader: (4/100%)
Join Date: Oct 2007
Location: Los angeles, ca
Posts: 39
Default

How is the 13w working for you in that hood? I was thinking of going with this bulb...

http://www.bulborama.com/store/cart....t_detail&p=799

but I'm not sure if it'll put out too much heat or anything.

I've also got the Eclipse 5g corner, BTW. I'm just looking for a replacement for my 10w 50/50 (it used to be saltwater).
dlawlor is offline   Reply With Quote
Old 11-26-2007, 11:26 AM   #12
swylie
Planted Tank Enthusiast
 
swylie's Avatar
 
PTrader: (0/0%)
Join Date: May 2007
Location: Frederick, MD
Posts: 664
Default

That bulb will be fine. Once again, no promises, but I'm putting a lot more heat into mine and nothing has melted yet.
swylie is offline   Reply With Quote
Old 11-26-2007, 02:14 PM   #13
tranceFusion
Algae Grower
 
PTrader: (0/0%)
Join Date: Nov 2007
Location: Frederick, MD
Posts: 12
Default

The 13w is working great so far! The hood doesn't get as warm as with the incandescent it came with and the red ludwigia I have in there has grown probably 10% in a week, plus it seems to have alot of root growth (i am also using laterite and adding iron), after just a week.

I keep the light on about 16 hours per day as I am mainly trying to breed snails in there to feed my puffer and it is recommended to leave the lights on for them as much as possible to get the most breeding.
tranceFusion is offline   Reply With Quote
Old 11-26-2007, 02:29 PM   #14
swylie
Planted Tank Enthusiast
 
swylie's Avatar
 
PTrader: (0/0%)
Join Date: May 2007
Location: Frederick, MD
Posts: 664
Default

Quote:
Originally Posted by tranceFusion View Post
I keep the light on about 16 hours per day as I am mainly trying to breed snails in there to feed my puffer and it is recommended to leave the lights on for them as much as possible to get the most breeding.
Be careful with those 16h days. It's generally acknowledged around here that long lighting hours promote algal growth. Since you're breeding snails that might be desirable or it might not. Just keep that in mind if you end up growing more algae than your snails can handle, and consider cutting back on the hours of light. Glad to hear that things are working well so far.
swylie 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 06:48 PM.


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