got led 30 watts fixture????? enough for 55 gallon??
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 06-30-2013, 03:58 AM   #1
posmlady
Algae Grower
 
posmlady's Avatar
 
PTrader: (0/0%)
Join Date: May 2013
Location: Portland oregon
Posts: 64
Default

got led 30 watts fixture????? enough for 55 gallon??


I've read several places this is enough for high light plants in my 55 gallon. However my anubis seem to be getting see through leaves? I'm also having an issue with algae growing on leaves of plants. What should I do? My nitrates are still a bit high to get fish. Should I get some snails?
posmlady is offline   Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Old 06-30-2013, 04:11 AM   #2
Hoppy
Planted Tank Guru
 
Hoppy's Avatar
 
PTrader: (74/100%)
Join Date: Dec 2005
Location: Sacramento, CA
Posts: 18,358
Default

You can't tell how much light you will get from a LED light fixture unless you know what LEDs are used, and whether or not it has an efficient LED driver. If, for example, the light fixture uses a resistor in series with each LED, the total fixture could use twice as much power as what the LEDs are using directly. And, the newer 3+ watt LEDs are much more efficient than old .06 watt LEDs.
__________________
Hoppy
Hoppy is online now   Reply With Quote Quick reply to this message
Old 06-30-2013, 03:19 PM   #3
Steve001
Wannabe Guru
 
PTrader: (0/0%)
Join Date: Feb 2011
Location: Baltimore Maryland
Posts: 1,233
Default

And remember wattage is only a measure of how much electrical energy this setup will use in one hour, it indicates nothing more.
Steve001 is offline   Reply With Quote Quick reply to this message
Old 07-01-2013, 02:41 AM   #4
posmlady
Algae Grower
 
posmlady's Avatar
 
PTrader: (0/0%)
Join Date: May 2013
Location: Portland oregon
Posts: 64
Default

Why does everyone say watts per gallon? I'm not at home yet, but still have the box for light, what should I look for on it?
posmlady is offline   Reply With Quote Quick reply to this message
Old 07-01-2013, 03:49 AM   #5
Steve001
Wannabe Guru
 
PTrader: (0/0%)
Join Date: Feb 2011
Location: Baltimore Maryland
Posts: 1,233
Default

Quote:
Originally Posted by posmlady View Post
Why does everyone say watts per gallon? I'm not at home yet, but still have the box for light, what should I look for on it?
Because of old habits and people not bothering updating their personal knowledge base.

Long before PAR became the new standard there was no easy way for the average hobbyist to measure PAR, so the next best thing was to use wattage. People knew that higher wattage bulbs put out more light and more of the right wavelengths of light plants need. If there had been an easy way to measure PAR in previous decades the watts per gallon rule would never have been. Shall we talk about PUR?
Steve001 is offline   Reply With Quote Quick reply to this message
Old 07-01-2013, 06:34 AM   #6
posmlady
Algae Grower
 
posmlady's Avatar
 
PTrader: (0/0%)
Join Date: May 2013
Location: Portland oregon
Posts: 64
Default

Ok here is what it says 30 watt
Ultra safe 12v
Total lumens 2000
Up to 50,000 hrs
96 6500k white leds
48 rgb full-spectrum leds

So is that ok for a 55.gallon?
posmlady is offline   Reply With Quote Quick reply to this message
Old 07-01-2013, 09:50 AM   #7
Xiaozhuang
Planted Tank Obsessed
 
Xiaozhuang's Avatar
 
PTrader: (0/0%)
Join Date: Feb 2012
Location: South east asia
Posts: 321
Send a message via MSN to Xiaozhuang
Default

2000 lumens seems rather meh for a 55 gal. I don't think this is anywhere near high-light. One could squeeze 4-5X that amount of light and it'd still be manageable.
Xiaozhuang is offline   Reply With Quote Quick reply to this message
Old 07-01-2013, 01:54 PM   #8
Steve001
Wannabe Guru
 
PTrader: (0/0%)
Join Date: Feb 2011
Location: Baltimore Maryland
Posts: 1,233
Default

Quote:
Originally Posted by Xiaozhuang View Post
2000 lumens seems rather meh for a 55 gal. I don't think this is anywhere near high-light. One could squeeze 4-5X that amount of light and it'd still be manageable.
Lumens isn't useful as an indication either. Lumen tells the consumer how bright this light will appear. A 2000 lumen green emitting light at 555nm will appear very bright yet because it lacks blue and red light will have virtually non existent PAR usefulness. On the other hand red/blue grow lights appear dim, but have very high PAR usefulness.
Steve001 is offline   Reply With Quote Quick reply to this message
Old 07-01-2013, 01:56 PM   #9
Steve001
Wannabe Guru
 
PTrader: (0/0%)
Join Date: Feb 2011
Location: Baltimore Maryland
Posts: 1,233
Default

Quote:
Originally Posted by posmlady View Post
I've read several places this is enough for high light plants in my 55 gallon. However my anubis seem to be getting see through leaves? I'm also having an issue with algae growing on leaves of plants. What should I do? My nitrates are still a bit high to get fish. Should I get some snails?
I think I listed some books for you to read. Have you bought any books on aquatic plant keeping yet?
Steve001 is offline   Reply With Quote Quick reply to this message
Old 07-01-2013, 08:20 PM   #10
posmlady
Algae Grower
 
posmlady's Avatar
 
PTrader: (0/0%)
Join Date: May 2013
Location: Portland oregon
Posts: 64
Default

I have not bought any books this light has different settings, and has red green blue and white colors. I usually keep it on the full spectrum. How do you figure out par? I just noticed today my banana plants are also having leaves thinning?
posmlady is offline   Reply With Quote Quick reply to this message
Old 07-02-2013, 04:41 PM   #11
xiaoxiy
Planted Member
 
PTrader: (4/100%)
Join Date: Dec 2012
Location: Iowa
Posts: 172
Default

Just as a quick question, what brand/light fixture is this LED light?

EDIT:

I dug through all of your old posts and figured out which light fixture you have. You have the Current USA Freshwater LED+ Fixture, which should put you between 21-28 PAR for a 55 gallon tank (21 inch height). Most people would consider this low-light. With it, you should be able to grow most low-light plants and maybe some medium-light plants.

Last edited by xiaoxiy; 07-02-2013 at 04:56 PM.. Reason: Figured out light fixture.
xiaoxiy is offline   Reply With Quote Quick reply to this message
Old 07-02-2013, 08:19 PM   #12
Steve001
Wannabe Guru
 
PTrader: (0/0%)
Join Date: Feb 2011
Location: Baltimore Maryland
Posts: 1,233
Default

Quote:
Originally Posted by posmlady View Post
I have not bought any books this light has different settings, and has red green blue and white colors. I usually keep it on the full spectrum. How do you figure out par? I just noticed today my banana plants are also having leaves thinning?
To figure out PAR you'd have to get that info from someone or from some credible source or buy a PAR meter and measure it. Books
A good book and an old book that got me started is
*
The Optimum Aquarium
.

Another good book is.

ECOLOGY of the PLANTED AQUARIUM

A Practical Manual and Scientific
Treatise for the Home Aquarist
Third Edition (2013)
by Diana Walstad

Other books
AQUARIUM PLANTS by Christel Kasselmann

Dynamic Aquaria
(Third Edition)Building and Restoring Living Ecosystems


Peruse this site. http://www.aquatic-gardeners.org/

* If you purchase this book ignore the part about undergravel heating cables.

Last edited by Steve001; 07-03-2013 at 12:05 PM.. Reason: .
Steve001 is offline   Reply With Quote Quick reply to this message
Reply

Tags
algae, led, light, thin leaves

Quick Reply
Message:
Options

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:
If you do not want to register, fill this field only and the name will be used as user name for your post.
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

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 04:28 AM.


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