Go Back   Aquarium Advice - Aquarium Forum Community > General Aquarium Forums > General Hardware/Equipment Discussion
Click Here to Login

Join Aquarium Advice Today
Thread Tools Search this Thread Display Modes
Please support our sponsors and let them know you heard about them on AquariumAdvice.com
Old 07-13-2005, 08:37 PM   #1
Aquarium Advice Apprentice
Join Date: Jun 2005
Location: Clanton, Al
Posts: 32
400 watt mh for 75 gallon? Need advice...thanks

would a 400 watt mh be too much for a 75 gallon? Can you have too much light? If I purchase one, I'll probably build a hanging canopy with a couple of actinic 40 watt NO.

If I build a hanging canopy, would I need a fan?

With a canopy that rests on the aquarium, would I need a fan?

Would that much light "sunburn" corals and other stuff on my live rock?

Do you think any fish I get would be "spooked" or be a little shy because of the mh?

I just found a deal ($90) and have been pondering.

Thanks and God Bless,

The joy of the Lord is my strength!

Only bikers know why dog's hang their heads out of the window!

75 gallon (finally got water in it in late June)
40 lbs aragonite select sand
25 lbs live rock
10 lbs of base rock added 7-6-05
2 x Penguin 330 w/bio wheel
NO 40 watt Powerglow
bassetbros is offline   Reply With Quote
Old 07-13-2005, 09:11 PM   #2
AA Team Emeritus
Join Date: May 2002
Location: Virginia
Posts: 2,256
Send a message via ICQ to fishfreek Send a message via AIM to fishfreek Send a message via MSN to fishfreek Send a message via Yahoo to fishfreek
You need two MH bulbs for a tank longer than 3' in lengh. This is because the MH bulb unlike florecent bulbs emit their light from a single point and the light is only really effective as reef lighting for a 2' square area. So for a 75 gal tank or any other 4' long tank you should have two MH fixtures. Unless you was looking to keep very high light required coral and clams you can do with a pair of 175W MH bulbs or a pair of 250W MH bulbs. Going with a pair of 400W MH bulbs would be overkill for a 75 for all but the most light hungery inverts.
Remember dont tap the glass, your fish will think you're an idiot -Anonymous mother

Check out our articles area. 30+ Aquatic articles for your enjoyment
Are you in or around the Shenandoah Valley area? If so click here to join our regional forum.
fishfreek is offline   Reply With Quote

5 gallon, 75 gallon, watt

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
URGENT-Hydor recalls 300 and 400 watt heaters InfernoST General Hardware/Equipment Discussion 6 02-15-2010 04:37 PM
400 watt halide over 85 OceanMist Saltwater Reef Aquaria 8 07-18-2006 12:55 PM
New CoralVue 400 watt HQI is coming!! captivereefs General Hardware/Equipment Discussion 1 06-25-2004 10:02 PM
400 watt mh ballest M-59 and mogul . Will trade for frags Dewey Archive 1 11-15-2003 07:40 AM
400 watt ballest and mogul sockett for sale Dewey Archive 3 10-26-2003 08:54 PM

» Photo Contest Winners

Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -4. The time now is 09:14 PM.

Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2018, vBulletin Solutions, Inc.