new to planted aquariums lighting advise needed - Page 2 - Tropical Fish Keeping - Aquarium fish care and resources
Reply
 
LinkBack Thread Tools
post #11 of 29 Old 08-27-2012, 09:48 AM
Member
 
Byron's Avatar
 
Quote:
Originally Posted by aklick View Post
I do have a manufactured hood light fixture but I also have a glass cover under it. So I could easily get a new "hood" or "light fixture" any suggestions?
With a full glass cover, you can get a strip light that then sits on the tank frame at the ends. This will usually mean a longer tube that what you now have.

Your options are a T8 fixture taking a single tube, or a double tube; or a single tube T5 but these are hard to get. I have the single tube T8, and I accept this is minimal light but I have fish that do not like bright light so I select plants that will manage.

You can get a T8 fixture that is 36 inches and takes a 36-inch tube, which would be fine. Here is one at Drs.Foster&Smith as an example. They have single tube an d dual tube in 36 inches, and they take 36-inch tubes.
Fluorescent Aquarium Lighting: Marineland Fluorescent Lights

Byron Hosking, BMus, MA
Vancouver, BC, Canada

The aquarist is one who must learn the ways of the biologist, the chemist, and the veterinarian. [unknown source]

Something we all need to remember: The fish you've acquired was quite happy not being owned by you, minding its own business. If you’re going to take it under your wing then you’re responsible for it. Every aspect of its life is under your control, from water quality and temperature to swimming space. [Nathan Hill in PFK]
Byron is offline  
Sponsored Links
Advertisement
 
post #12 of 29 Old 08-27-2012, 10:07 AM
New Member
 
Brandonl87's Avatar
 
So for a planted tank the full spet. is better than the red and blue wave length which are the "floramax" bulbs?

55gal. Mbuna Tank. Aceis, Labs, Red Zebras,Cobalt Blues.

55gal Bowfront.Blood Parrot fish

55gal. under construction

awaiting to find 125+ for Mbuna
Brandonl87 is offline  
post #13 of 29 Old 08-27-2012, 10:17 AM
Member
 
Byron's Avatar
 
Quote:
Originally Posted by Brandonl87 View Post
So for a planted tank the full spet. is better than the red and blue wave length which are the "floramax" bulbs?
Yes. While it is true that aquarium plants require light in the red and blue wavelengths to photosynthesize, it also seems they somehow use the green which is not present in the so-called plant/aquarium tubes but is present in the full spectrum/daylight types. The 6500K rating is the key here.

I also think there is an issue with intensity. The special tubes put out less intense light, some of them are about half the intensity of the same sized daylight tube, and this has to be part of it.

Byron Hosking, BMus, MA
Vancouver, BC, Canada

The aquarist is one who must learn the ways of the biologist, the chemist, and the veterinarian. [unknown source]

Something we all need to remember: The fish you've acquired was quite happy not being owned by you, minding its own business. If you’re going to take it under your wing then you’re responsible for it. Every aspect of its life is under your control, from water quality and temperature to swimming space. [Nathan Hill in PFK]
Byron is offline  
post #14 of 29 Old 08-27-2012, 10:23 AM Thread Starter
Member
 
Quote:
Originally Posted by Byron View Post
Yes. While it is true that aquarium plants require light in the red and blue wavelengths to photosynthesize, it also seems they somehow use the green which is not present in the so-called plant/aquarium tubes but is present in the full spectrum/daylight types. The 6500K rating is the key here.

I also think there is an issue with intensity. The special tubes put out less intense light, some of them are about half the intensity of the same sized daylight tube, and this has to be part of it.
I've also read that the red and blue bulbs give off a purple glow so they warn't ideal. I read somewhere on here a full spectrum and a cool blue bulb would work great.
aklick is offline  
post #15 of 29 Old 08-27-2012, 10:54 AM
Member
 
Byron's Avatar
 
Quote:
Originally Posted by aklick View Post
I've also read that the red and blue bulbs give off a purple glow so they warn't ideal. I read somewhere on here a full spectrum and a cool blue bulb would work great.
Yes, the purplish or goulish hue of those tubes is to me not nice, and the fish and plant colours are not true.

If you have two tubes, you can mix them. A full spectrum plus a cool white. This is basically the 6500K tubes that several of us recommend, and stats show these do promote the best growth in aquarium plants.

Byron.

Byron Hosking, BMus, MA
Vancouver, BC, Canada

The aquarist is one who must learn the ways of the biologist, the chemist, and the veterinarian. [unknown source]

Something we all need to remember: The fish you've acquired was quite happy not being owned by you, minding its own business. If you’re going to take it under your wing then you’re responsible for it. Every aspect of its life is under your control, from water quality and temperature to swimming space. [Nathan Hill in PFK]
Byron is offline  
post #16 of 29 Old 08-27-2012, 10:57 AM Thread Starter
Member
 
Quote:
Originally Posted by Byron View Post
Yes, the purplish or goulish hue of those tubes is to me not nice, and the fish and plant colours are not true.

If you have two tubes, you can mix them. A full spectrum plus a cool white. This is basically the 6500K tubes that several of us recommend, and stats show these do promote the best growth in aquarium plants.

Byron.
out of curiosity what is the difference between full spectrum and cool white?
aklick is offline  
post #17 of 29 Old 08-27-2012, 10:59 AM
New Member
 
Brandonl87's Avatar
 
Ok thanks for clearing this up my planted tanks bulbs are due to be changed out here in the next few weeks. And i have the floramax bulbs but everything is doing semi ok but my vals and some others. So ill purchase the full speturams. thanks Bryon

55gal. Mbuna Tank. Aceis, Labs, Red Zebras,Cobalt Blues.

55gal Bowfront.Blood Parrot fish

55gal. under construction

awaiting to find 125+ for Mbuna
Brandonl87 is offline  
post #18 of 29 Old 08-27-2012, 11:27 AM Thread Starter
Member
 
I know this is a t5 but what about this? Or would it be to much for my tank (50 gallon) http://www.amazon.com/Odyssea-Aquarium-Light-Fluorescent-Fixture/dp/B005HE5DE2
my tank is oak though so it would probably look odd

Last edited by aklick; 08-27-2012 at 11:36 AM.
aklick is offline  
post #19 of 29 Old 08-27-2012, 04:25 PM
Member
 
Byron's Avatar
 
Quote:
Originally Posted by aklick View Post
I know this is a t5 but what about this? Or would it be to much for my tank (50 gallon) Amazon.com: Odyssea 36" T5 HO Aquarium Light Dual Fluorescent Hood Fixture - Marine 2x39W: Pet Supplies

my tank is oak though so it would probably look odd
That is way too much light. The fixtures I linked in my post #11 are the best in my view. And the dual-tube would be OK. With floating plants, and keeping the light duration period in check, this would work and give you more options with plants.

The issue with light is balance; plants need sufficient light intensity to photosynthesize (grow) but they can't photosynthesize unless they have 17 specific nutrients. Some of these we can add via fertilizers, some we rely on nature to provide. Carbon is one of these; CO2 (carbon dioxide) occurs from fish, plant and bacteria respiration, but even more from the breakdown of organics by bacteria in the substrate. Increasing the light will not make any improvement to plant growth without CO2 and the other nutrients to balance. But light beyond what is balanced by nutrients will give algae the advantage.

Byron.

Byron Hosking, BMus, MA
Vancouver, BC, Canada

The aquarist is one who must learn the ways of the biologist, the chemist, and the veterinarian. [unknown source]

Something we all need to remember: The fish you've acquired was quite happy not being owned by you, minding its own business. If you’re going to take it under your wing then you’re responsible for it. Every aspect of its life is under your control, from water quality and temperature to swimming space. [Nathan Hill in PFK]
Byron is offline  
post #20 of 29 Old 08-27-2012, 04:32 PM
Member
 
Byron's Avatar
 
Quote:
Originally Posted by aklick View Post
out of curiosity what is the difference between full spectrum and cool white?
Full spectrum technically means the full light spectrum of colour wavelengths from infrared to ultraviolet. In practice, tubes can vary a lot while still being termed full spectrum, and one has to examine the spectral graph of each tube.

Cool white has a higher level of blue light (and less red) so it moves to the "cool" side. Warm white is the opposite, more red and less blue.

Kelvin is often used in this, although technically it has no direct relation to spectrum. But for our purposes, it can serve as a guide. Aquarium plants in controlled studies grew better when placed under light having a K between 6000K and 7000K, which is why most of us recommend this range. "Daylight" or "cool white" is used in connection with these.

Byron Hosking, BMus, MA
Vancouver, BC, Canada

The aquarist is one who must learn the ways of the biologist, the chemist, and the veterinarian. [unknown source]

Something we all need to remember: The fish you've acquired was quite happy not being owned by you, minding its own business. If you’re going to take it under your wing then you’re responsible for it. Every aspect of its life is under your control, from water quality and temperature to swimming space. [Nathan Hill in PFK]
Byron is offline  
Reply

Tags
planted aquarium

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



Similar Threads
Thread Thread Starter Forum Replies Last Post
Lighting needed for 10 gallon planted tank? Cassandra90 Beginner Planted Aquarium 20 07-23-2011 09:03 PM
Tank cycle advise needed please djj123 Beginner Freshwater Aquarium 5 03-18-2010 07:01 PM
Urgent advise needed! MarcoPolo Beginner Freshwater Aquarium 8 12-06-2009 12:09 AM

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 On
Pingbacks are On
Refbacks are On

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