Lighting Question - Betta Fish and Betta Fish Care
LinkBack Thread Tools
post #1 of 3 (permalink) Old 02-14-2013, 09:45 PM Thread Starter
valen1014's Avatar
Join Date: Jan 2013
Location: Miami, FL
Posts: 541
Lighting Question

Hey guys!

I was looking to buy cheap-ish desk lamps for my 2.5 gallons. I found some "sunlight" desk lamps ( that apparently has full spectrum.

I was wondering though... wouldn't the "full spectrum" aspect be dependent on the bulb, not the lamp?

I found a bulb that is 13 watts, compact fluorescent, 6500 K (

My big question is... if I find any lamp that can take 13 watts, and happens to be able to fit the actual bulb, can I just them together?

valen1014 is offline  
Sponsored Links
post #2 of 3 (permalink) Old 02-14-2013, 10:02 PM
sarahspins's Avatar
Join Date: Sep 2012
Posts: 295
Full spectrum has to do with the color temperature of the bulbs.. that lamp comes with it's own special bulbs.

I don't think that you can just put a 13W bulb in a lamp designed for 27W. 13W is also a LOT of light for a 2.5 gallon tank.

You really don't want to go overboard with your light... the rule of thumb is 1-2 watts per gallon. In a heavily planted tank you can go higher, but above a certain point you have the balance that with injecting CO2 or you'll have an algae explosion I have a 5W fugeray fixture on my 4 gallon tank and I'm battling algae in that tank even with injected CO2.

I would stick to lower wattage range, which probably excludes CFL's on a tank that size... look into LED's, but again, be careful, because the wattage matters a lot... anything more than 5W is probably going to be too much.

You didn't mention if you are growing plants or not but for the most part full spectrum only matters for plants that like a lot of light - if you don't have plants or have low-light plants it's not as critical.
sarahspins is offline  
post #3 of 3 (permalink) Old 02-14-2013, 10:52 PM
Nothingness's Avatar
Join Date: Oct 2012
Location: Ontario, Canada
Posts: 287
a 13w CFL bulb is equivalent to a 60w incandescent bulb. Way too much light for a 2.5g tank.
Nothingness is offline  

Quick Reply

Register Now

In order to be able to post messages on the Betta Fish and Betta Fish Care 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:


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
Show Printable Version Show Printable Version
Email this Page Email this Page

Similar Threads
Thread Thread Starter Forum Replies Last Post
Lighting Question... Adelais Planted Betta Tanks 4 02-12-2013 10:27 AM
Lighting Question ??? mookeeful Betta Chat 7 08-14-2011 10:03 PM

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
Trackbacks are On
Pingbacks are On
Refbacks are On

Powered by vBadvanced CMPS v3.2.3
For the best viewing experience please update your browser to Google Chrome