Lighting and ferts - Tropical Fish Keeping - Aquarium fish care and resources
Reply
 
LinkBack Thread Tools
post #1 of 11 Old 09-04-2011, 11:04 AM Thread Starter
New Member
 
Lighting and ferts

So i have been thinking about getting a t5 fixture for my 55 gallon, im already dosing seachems fert twice a week. I wanted to know if by increasing light would i also have to increase ferts, such as adding root tabs to maintain it balanced? Probably a dumb question but im curious.
moomoofish is offline  
Sponsored Links
Advertisement
 
post #2 of 11 Old 09-04-2011, 11:16 AM
Member
 
Boredomb's Avatar
 
That would depend on if you are talking about T5HO and how many bulbs. Also what type of lights are you running now?
Boredomb is offline  
post #3 of 11 Old 09-04-2011, 11:29 AM Thread Starter
New Member
 
probably a fixture that runs 2 t5ho's and currently i only have a aqueon full day spectrum bulb, its only a 24 inch so it only covers half the tank.
moomoofish is offline  
post #4 of 11 Old 09-04-2011, 12:46 PM
Member
 
Boredomb's Avatar
 
You will probably have to increase dosing or even go to Dry fertilizers which would be cheaper in the long run. Might also need to run Co2. Or some liquid supplement (like excel though some plants don't like this and it not necessarily the best). Is there a reason you want such bright lights? You can grow a wide range of plants with less intense lighting that is cheaper. Like a dual T8 fixure.
Boredomb is offline  
post #5 of 11 Old 09-04-2011, 01:17 PM
Member
 
Byron's Avatar
 
I agree in principle with Boredomb, but I think we are getting a bit mixed up over the tube length. If this is a standard 4-foot 55g, it should have a full length 48-inch tube over it, not a 24-inch. Do you have two 24-inch tubes in the fixture, or just one?

If you want to replace the fixture, you have two workable choices for a natural (low-tech) setup. A single -tube T5 fixture, or a dual-tube T8 (regular) fixture. The tubes are not interchangeable, so its one or the other. Both will give a fair bit of light, and you will undoubtedly need to reduce the duration or have algae issues. I can discuss tubes if asked.

Either of my suggestions will work with once or twice weekly dosing of Flourish Comprehensive.

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 youíre going to take it under your wing then youíre 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 #6 of 11 Old 09-04-2011, 01:18 PM Thread Starter
New Member
 
Well i figured if i wanted high light plants that the t5's would do good. But i guess its too much light? And i have been looking up dual t8 fixtures with the 2 bulbs, but cant find many, or any within a reasonable price.
moomoofish is offline  
post #7 of 11 Old 09-04-2011, 01:33 PM
Member
 
Byron's Avatar
 
Quote:
Originally Posted by moomoofish View Post
Well i figured if i wanted high light plants that the t5's would do good. But i guess its too much light? And i have been looking up dual t8 fixtures with the 2 bulbs, but cant find many, or any within a reasonable price.
A dual T5 will be way too much. You would have to go to a high-tech setup with that fixture, using CO2 and daily nutrient fertilization. Otherwise the high light intensity would create a tank full of algae.

T5 tubes come in NO (normal output) and HO (high output), and I think there is now a VHO (very high output) which is really only suitable over marine reef systems. The NO tubes are very hard to find--no one in my area has them, and I believe this is common elsewhere. They are basically the same intensity as the regular T8, so I guess not worth the extra cost (T5 fixtures and tubes cost more than T8).

A T5 HO is equal to 1.5 T8 tubes in light intensity, using the same length and type (spectrum). So two T5 HO is like 3+ T8 tubes. A single T5 tube will work, or a dual T8. These fixtures are available, here are a couple links from Foster&Smith just for reference; the first two are dual T8, the third is single T5.

Fluorescent Aquarium Lighting: Perfecto Fluorescent Double-Bulb Strip Lights

Fluorescent Aquarium Lighting: All-Glass Twin-Tube Black Strip Lights

Aquarium Lighting for Planted & Reef Aquariums: Hagen GLO T5 HO Linear Fluorescent Fixtures

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 youíre going to take it under your wing then youíre 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 #8 of 11 Old 09-04-2011, 01:53 PM Thread Starter
New Member
 
Thanks for the links byron. I had another question, which bulb is better aqueon's full daylight spectrum or their plant growth? I couldnt find the kelvin rating for the plant growth one.
moomoofish is offline  
post #9 of 11 Old 09-04-2011, 01:57 PM
Member
 
Byron's Avatar
 
Quote:
Originally Posted by moomoofish View Post
Thanks for the links byron. I had another question, which bulb is better aqueon's full daylight spectrum or their plant growth? I couldnt find the kelvin rating for the plant growth one.
Without looking up either, from the name alone I would suspect the full daylight. In my experience with many manufacturers, tubes labelled "aquarium" "plant" and similar tend to be purplish and weak intensity.

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 youíre going to take it under your wing then youíre 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 #10 of 11 Old 09-04-2011, 02:01 PM Thread Starter
New Member
 
hmm because i have the full daylight spectrum one and that one is actually really purply
moomoofish is offline  
Reply

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



Similar Threads
Thread Thread Starter Forum Replies Last Post
A few questions about lighting, diatoms.. ferts... I'm lost. jennesque Beginner Planted Aquarium 6 08-11-2011 12:39 AM
plant ferts molliefan09 Beginner Planted Aquarium 14 11-05-2009 06:37 PM
A little help with WPG/CO2/ferts?? etgregoire Beginner Planted Aquarium 4 10-24-2009 07:25 PM
Liquid Ferts? yippee Beginner Planted Aquarium 19 06-25-2009 04:58 PM

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