| View previous topic :: View next topic |
| Author |
Message |
MilindV
IAH New Member
Joined: Apr 24, 2013
Posts: 17
Location: Mumbai
Status: Offline
|
 Posted: Mon Jun 17, 2013 10:59 am Post subject: Lighting Hours |
 |
|
Hello All,
It is recommended to have lighting unit on for 8 hours in a day. My question is do I need to switch light on 8 hours stretch or I can switch light for 4 hours in morning and 4 hours in the evening?
Thanks,
Milind |
|
|
| Back to top |
|
 |
Mortis
Committed Member of IAH
Joined: Apr 14, 2006
Posts: 1968
Location: Mumbai
Status: Offline
|
| Posted: Mon Jun 17, 2013 1:30 pm Post subject: Re: Lighting Hours |
|
|
| Switch it on at a stretch |
|
|
| Back to top |
|
|
MilindV
IAH New Member
Joined: Apr 24, 2013
Posts: 17
Location: Mumbai
Status: Offline
|
| Posted: Mon Jun 17, 2013 1:35 pm Post subject: Re: Lighting Hours |
|
|
| Thanks I will do that but any specific reason for this why can't I switch light in morning and evening instead? any scientific reason behind this? |
|
|
| Back to top |
|
|
sandeepraghuvanshi
Moderator
Joined: Aug 19, 2005
Posts: 4895
Location: Mathura, UP
Status: Offline
|
| Posted: Mon Jun 17, 2013 5:36 pm Post subject: Re: Lighting Hours |
|
|
You can do it either way, there have been lots of discussion on this topic in various forums with no conclusion.
There is a school of thought that split timings help in reducing algae, however Tom Barr had put by a very nice paper with lots of charts and data and came to conclusion that split timings do not have any additional advantage.
Why not have 8 hours in the afternoon.
My tank lights come on a 12 pm and go off at 8 pm, this allows me to see the tank in evening. |
|
|
| Back to top |
|
|
MilindV
IAH New Member
Joined: Apr 24, 2013
Posts: 17
Location: Mumbai
Status: Offline
|
| Posted: Mon Jun 17, 2013 9:37 pm Post subject: Re: Lighting Hours |
|
|
| Can you plase provide me location of white paper written by Tom Barr? |
|
|
| Back to top |
|
|
Mortis
Committed Member of IAH
Joined: Apr 14, 2006
Posts: 1968
Location: Mumbai
Status: Offline
|
| Posted: Mon Jun 17, 2013 10:19 pm Post subject: Re: Lighting Hours |
|
|
| It takes the plants a couple of hours to ramp up their photosynthesis. So if you are doing 4+4 hours you are only getting about 4-5 hours of optimum photosynthetic activity from your plants. Any reason why you want to split the light period ? Also, why is this in the ADA forum ? |
|
|
| Back to top |
|
|
MilindV
IAH New Member
Joined: Apr 24, 2013
Posts: 17
Location: Mumbai
Status: Offline
|
| Posted: Tue Jun 18, 2013 9:44 am Post subject: Re: Lighting Hours |
|
|
Hi,
I am using ADA LED lights, AquaSky so thought put question in ADA group. |
|
|
| Back to top |
|
|
sandeepraghuvanshi
Moderator
Joined: Aug 19, 2005
Posts: 4895
Location: Mathura, UP
Status: Offline
|
| Posted: Tue Jun 18, 2013 9:51 am Post subject: Re: Lighting Hours |
|
|
| MilindV wrote (View Post):
|
|
Can you plase provide me location of white paper written by Tom Barr?
|
You have to be a subscriber to Tom barr's website to access that article.
Send me your email, maybe I can give you something. |
|
|
| Back to top |
|
|
|
Guest(s): 1,909
![[News Feed]](images/powered/feed_20_news.png "News Feed"){kind=small}
![[Forums Feed]](images/powered/feed_20_forums.png "Forums Feed"){kind=small}
![[Downloads Feed]](images/powered/feed_20_down.png "Downloads Feed"){kind=small}
![[Web Links Feed]](images/powered/feed_20_links.png "Web Links Feed"){kind=small}
![[Validate robots.txt]](images/powered/valid-robots.png "Validate robots.txt"){kind=small}