The Planted Tank Forum - Reply to Topic
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 > General Planted Tank Forums > General Planted Tank Discussion > Lighting question

Thread: Lighting question Reply to Thread
Title:
  
Message:
Post Icons
You may choose an icon for your message from the following list:
 

Register Now

In order to be able to post messages on the The Planted Tank Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Additional Options
Miscellaneous Options

Topic Review (Newest First)
11-14-2012 03:07 AM
dhuffer
Thank you

Thank you all for the points of view and information I may just leave it alone cause I know I'd be kind of peeved if someone kept turning lights on an off on me LOL.....
11-13-2012 11:27 PM
ngrubich Some plants need a specific lighting schedule in order to reproduce (i.e. need exactly 10 hours of darkness without any exposure to light to trigger flowering in some houseplants). However as far as I am aware, there aren't many, if any at all, aquarium plants that need a specific photoperiod to flower.
It could also mess with certain fish and their spawning if you have some that are sensitive to photoperiod as well. I know that rainbow trout can trigger early spawning if they are exposed to accelerated photoperiods (like in hatcheries), and ultimately decrease their reproductive cycle by 3-6 months.
I would look into the types of plants and fish that you have / want to get and see if they are affected by weird photoperiods before going with it.
11-13-2012 11:11 PM
ced281 I think one can make the argument about fish and plants being on circadian rhythms, so splitting the lighting may not be optimal for the tank. I haven't seen any data to support this however, so it could be just be conjecture. If you think about people and other animals, they get stressed out when you divide up the daylight schedule but in most cases adjust rather quickly. I'm not aware of any long-term studies on humans or other animals about disrupting circadian rhythms.

I used to split my lighting just like you mentioned and I don't think my fish were too happy about it since they seemed pretty stressed overall. If you use CO2 injection, I'd be careful about splitting up your lighting times if your solenoid valve is also on the same time schedule. It takes time for the CO2 levels in your tank to reach steady-state pressure and also for your plants to use up the CO2 in the water. If you don't have enough surface disruption you might accidentally gas your fish in between your morning and evening light cycles.
11-13-2012 10:21 PM
MSG
I don't see why that would pose any problem.

I usually have the lights for my tank turn on about 30 minutes after it gets dark outside. So they're on from 5pm to 3am or 4am.

The tanks double as lights in the living room/dining room.

As long as everything is controlled by a timer...... the fish/plants will adjust to the change in a week or two.
11-13-2012 09:34 PM
dhuffer
Lighting question

I am wondering if there are any cons to splitting up the 10 hours of lighting. ie I would like my main lights on for say 2 hours in the morning hours and then off during the day when no one is home and back on for the remaining say 8 hours into the evening for a total of 10 hours of main light. Any issues to the fish or plants?

Posting Rules
You may post new threads
You may 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


All times are GMT. The time now is 04:41 PM.


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