Lighting for a standard 90gal - The Planted Tank Forum
LinkBack Thread Tools Display Modes
post #1 of 1 (permalink) Old 05-30-2013, 05:13 PM Thread Starter
Join Date: May 2013
Location: Pittsburgh, PA
Posts: 1
Lighting for a standard 90gal

Brand new to the site, but I've been in the hobby for the better part of 3 decades now. Unfortunately, I've been out of the hobby for about 3 years now (law school, marriage, life got complicated), but I'm getting ready to start back up.

I have a standard 90 gallon tank. I will use 2 Fluval 404 canister filters on constantly as well as a hang on the side water polisher occasionally. For substrate, I have 2-3 inches of Seachem flourite. I have CO2 injection with an external reactor.

Now to the crux of my question. I used to use 2 175W metal halide fixtures inside the hood (non-pendant) anenergy consumption options, but I can'td well as 2 40W florescents (for sunrise/set effects) and LED moonlights. I have been looking into lower seem to find anything in the way of substantive guidance on systems. I was leaning toward LEDs because of low energy consumption and long lifespan of the bulb. My problem is that I don't know how much light I need. The old rule of 4-5 watts per gallon would be nearly completely cost-prohibitive and I've read that it's out of date.

If I want to be able to grow the high light requirement plants, how much light would I need for my 90 gallon?

What are some of the advantages of LEDs over other low consumption options?

Am I crazy? Should I just stick with the Metal Halides I have?

Thank you,
jml25uva is offline  

green lighting, led, metal halide

Quick Reply

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:
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
Display Modes
Linear Mode Linear Mode

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

For the best viewing experience please update your browser to Google Chrome