Go Back   Aquarium Advice - Aquarium Forum Community > Saltwater and Reef > Saltwater Reef Aquaria
Click Here to Login

Join Aquarium Advice Today
Reply
 
Thread Tools Search this Thread Display Modes
Please support our sponsors and let them know you heard about them on AquariumAdvice.com
 
Old 07-01-2004, 02:36 AM   #1
Aquarium Advice Freak
 
Join Date: Aug 2003
Location: Northern Va
Posts: 478
How does water depth effect lighting requirements?

Im looking at two different tanks, a 72g and 90g bow front. I believe the 90g is the same dimensions, except it is about 6inches taller. If I were to go reef, how much more light would be required for the 90g???
__________________

__________________
TygGer is offline   Reply With Quote
Old 07-01-2004, 02:54 AM   #2
Aquarium Advice Activist
 
Join Date: Oct 2003
Location: Arizona, Tempe
Posts: 196
From what I understand fish capacity is based somewhat on height, so you would be able to fit the same amount of fish in the 72 as the 90. Tall tanks are generally looked down upon.

Sorry I can't help you with the lighting question, but I am sure it would require a lot more light, unless you kept the very light intensive corals near the top.
__________________

__________________
12g JBJ nano-cube dx
NightSpirit is offline   Reply With Quote
Old 07-01-2004, 09:53 AM   #3
Aquarium Advice Addict
 
Join Date: Dec 2003
Location: Nebraska, USA
Posts: 6,703
fish stock is determined main by tank volume, and tank dimensions. the reason tall tanks are 'less than ideal' is because they have less swimming space on the horizontal plane, which most fish prefer left-right swimming than up-down.
that also means less surface area at the water line, which means less space for gas exchange.

In terms of lighting, 6" is going to make a difference, IF you want corals. for soft, easy corals, you'll need 4 watts per gallon on a standard depth tank. If you place corals higher up on the rock, 4wpg should be ok ina taller tank...but if you want them low, you'd prolly want 4.5wpg to be on the safe side.
The shape of the bow front is what I dislike. I don't like how the glass distorts viewing at certain angles, the added height, the extreme added cost (a bow front here is always double the price of a standard rectangular tank of similiar capacity)...plus it's rather hard to build a curved front canopy.

Anyhow, you'd want a minimum of 360watts for a reef setup on a 90gallon bowfront.
__________________
Former advisor and planted tank geek...life's moved on though.
malkore is offline   Reply With Quote
Old 07-01-2004, 10:16 AM   #4
Aquarium Advice Addict
 
Biggen's Avatar
 
Join Date: May 2003
Location: Panama City FL
Posts: 1,817
What are you wanting to keep in your reef tank? SPS? LPS? Softies? Clams? The reason I ask is because that question is typically more important to answer first. Then we can determine the type and amount of lights needed. Also, what are the dimensions on the 90g?

Forget about the WPG rule. It works great for FW but it is a bit "old school" as far as reef tanks go. It is more important to determine what you want to keep and what the tank size is insofar as height and length and then we can go from there.
__________________
Rodman
Biggen is offline   Reply With Quote
Old 07-01-2004, 10:35 AM   #5
Aquarium Advice Freak
 
Join Date: Aug 2003
Location: Northern Va
Posts: 478
I'm not exactly sure what I'd wanna keep as it would be atleast a year from now...
__________________
TygGer is offline   Reply With Quote
Old 07-01-2004, 10:46 AM   #6
Aquarium Advice Addict
 
Biggen's Avatar
 
Join Date: May 2003
Location: Panama City FL
Posts: 1,817
Quote:
I'm not exactly sure what I'd wanna keep as it would be atleast a year from now...
Hmm. Well it is difficult to advise on lights without knowing what you plan on keeping. At least you have a year to think about it. I can give you a general rule of thumb though:

Lets say you want to keep SPSs and clams. I would definitely go for a MH setup. Depending on how long your tank is, you may need more than one bulb. This is because the radius of one MH bulb only has a "footprint" of about 24" in diameter. So if your tank is over 24" in length, more than one bulb would be needed.

On the other hand, lets say you go with a softie, shroom, LPS tank. You would probably be fine selecting VHO or PC lighting. The number of bulbs and wattages would, again, be determined on the dimensions of the tank.

I hope I was able to help you out some. At least you have a year to research your lighting problem and get ideas from others.
__________________
Rodman
Biggen is offline   Reply With Quote
Old 07-01-2004, 03:47 PM   #7
Aquarium Advice Freak
 
Join Date: Aug 2003
Location: Northern Va
Posts: 478
Quote:
Originally Posted by Biggen
Quote:
I'm not exactly sure what I'd wanna keep as it would be atleast a year from now...
Hmm. Well it is difficult to advise on lights without knowing what you plan on keeping. At least you have a year to think about it. I can give you a general rule of thumb though:

Lets say you want to keep SPSs and clams. I would definitely go for a MH setup. Depending on how long your tank is, you may need more than one bulb. This is because the radius of one MH bulb only has a "footprint" of about 24" in diameter. So if your tank is over 24" in length, more than one bulb would be needed.

On the other hand, lets say you go with a softie, shroom, LPS tank. You would probably be fine selecting VHO or PC lighting. The number of bulbs and wattages would, again, be determined on the dimensions of the tank.

I hope I was able to help you out some. At least you have a year to research your lighting problem and get ideas from others.
Thanks! Yea, I have quite some time to think about it, but I'm imagining that I wouldn't keep anything that was difficult to maintain and require top-of-the-line lights.
__________________

__________________
TygGer is offline   Reply With Quote
Reply

Tags
light, lighting

Please support our sponsors and let them know you heard about them on AquariumAdvice.com

Thread Tools Search this Thread
Search this Thread:

Advanced Search
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
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
55 lighting requirements pinda Saltwater & Reef - Getting Started 8 08-23-2008 09:19 AM
Increased lighting.....how does it effect ferts? maxwell1295 Freshwater & Brackish - Planted Tanks 2 05-31-2006 11:16 PM
lighting requirements flame82 Saltwater Reef Aquaria 2 04-22-2005 11:50 PM
Lighting requirements? Myriad Freshwater & Brackish - Planted Tanks 1 01-29-2005 02:26 PM
lighting effect on fish Mr Burns Freshwater & Brackish - General Discussion 4 01-08-2004 10:13 PM







» Photo Contest Winners








Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -4. The time now is 09:31 PM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.