Lighting for a 24 inch deep tank
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 03-25-2012, 08:10 PM   #1
Teeman
Algae Grower
 
PTrader: (0/0%)
Join Date: Sep 2011
Location: Lethbridge Alberta
Posts: 7
Default

Lighting for a 24 inch deep tank


Hello everyone just wondering if anyone can give me there opinions on lighting.I hear conflicting opinions from anyone from my lfs.80 gallon tank 24 inches deep,currently have dual t5 ho fixture,have 2 10000k bulbs currently in.Will my plants do well with this lighting
Teeman is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 03-25-2012, 09:04 PM   #2
jcgd
Wannabe Guru
 
jcgd's Avatar
 
PTrader: (6/100%)
Join Date: Feb 2004
Location: Calgary, Alberta, Canada
Posts: 1,985
Send a message via MSN to jcgd
Default

Probably, assuming you have decent reflectors. What brand is it?
jcgd is offline   Reply With Quote
Old 03-25-2012, 09:05 PM   #3
proaudio55
Planted Tank Enthusiast
 
proaudio55's Avatar
 
PTrader: (0/0%)
Join Date: Oct 2011
Location: Blaine, Minnesota
Posts: 641
Default

You didn't mention exactly what plants / general conditions you're going for. But for general pointers:

I'd say the first thing to do is ditch the 10,000K bulbs (those are putting out a lot of UV light that isn't very helpful for plants) .... go for a couple 6500K's.

As for the fixture, assuming you have a decent reflector on it, that should be enough to get you started. However, if your plants start melting, You'll need a 3rd bulb in there to get your intensity up.
proaudio55 is offline   Reply With Quote
Old 03-25-2012, 09:10 PM   #4
jcgd
Wannabe Guru
 
jcgd's Avatar
 
PTrader: (6/100%)
Join Date: Feb 2004
Location: Calgary, Alberta, Canada
Posts: 1,985
Send a message via MSN to jcgd
Default

I wouldn't ditch the bulbs. Use whatever looks good to you. I prefer a 6700k with a 10000k. Looks similar to Amano's tanks. He prefers higher kalvin - a blue tinge over yellow or red.
jcgd is offline   Reply With Quote
Old 03-25-2012, 10:40 PM   #5
Hoppy
Planted Tank Guru
 
Hoppy's Avatar
 
PTrader: (74/100%)
Join Date: Dec 2005
Location: Sacramento, CA
Posts: 18,794
Default

A single T5HO bulb will light the substrate directly under it to around 50-60 micromols of PAR, medium light, with that tank, but it takes two bulbs separated about 6-8 inches to light up the whole substrate reasonably evenly, at about that same light intensity. With two bulbs close together, you get high light directly under the bulb, unless you raise it to about 30 inches from the substrate. All of this with a light that has very good reflectors and a real T5HO ballast. If the light you have is a good one, just suspend it above the tank and you will get better spread of light, better unformity, and a good light intensity. No need to ever use a 3rd bulb, unless the light is a cheap one without good reflectors or ballast.
__________________
Hoppy
Hoppy is offline   Reply With Quote
Old 03-26-2012, 01:11 AM   #6
Teeman
Algae Grower
 
PTrader: (0/0%)
Join Date: Sep 2011
Location: Lethbridge Alberta
Posts: 7
Default

Thank you for the quick replies everyone.For plants I have jungle val,2 sword plants,anubias ,and recently added some hair grass.The Jungle val does extremely well!I have to keep cutting it back or else it grows to about 3 feet.My sword plants have really good root growth but leaf growth is just not there.Hair grass to early to tell yet.I do supplement with flourish every week,Co2 is added aswell.Pro Audio I have tried the 6500 bulbs and I just found that it made my tank to yellowish.The fixture is a Corallife,has reflector in it already.
Teeman is offline   Reply With Quote
Old 03-26-2012, 01:13 AM   #7
Teeman
Algae Grower
 
PTrader: (0/0%)
Join Date: Sep 2011
Location: Lethbridge Alberta
Posts: 7
Default

I just measured and the fixture sits about 26 inches from the top of the substrate to the bottom of the fixture.
Teeman is offline   Reply With Quote
Old 03-26-2012, 01:36 AM   #8
Hoppy
Planted Tank Guru
 
Hoppy's Avatar
 
PTrader: (74/100%)
Join Date: Dec 2005
Location: Sacramento, CA
Posts: 18,794
Default

Coralife lights are not noted for having good reflectors. I haven't seen one of their T5HO lights, so it might be better. When you look at the bulbs do you see a reflection of each bulb on each side of the bulbs, so it appears to have 6 bulbs, not 2? If so, that is a very good reflector. If you only see a reflection of each bulb on one side of each bulb that is only a fair reflector. If you only see a partial reflection on one side of each bulb, that is a poor reflector. If it has a fair reflector you probably have low medium light. If its a poor reflector, you probably have low light.

With only the single light the light intensity will vary a lot from front or back of the tank to the middle, under the light. That could drop the intensity too low for growing all but mosses, etc. near the back and front. And, the plants will all try to grow up under the light, leaning into the middle.
__________________
Hoppy
Hoppy is offline   Reply With Quote
Old 03-26-2012, 01:40 AM   #9
Teeman
Algae Grower
 
PTrader: (0/0%)
Join Date: Sep 2011
Location: Lethbridge Alberta
Posts: 7
Default

Yes Hoppy it appears that there is 6 bulbs
Teeman is offline   Reply With Quote
Reply

Thread Tools
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

Forum Jump


All times are GMT. The time now is 04:07 AM.


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