how long to leave lights on? - Page 2 - The Planted Tank Forum
LinkBack Thread Tools Display Modes
post #16 of 20 (permalink) Old 06-04-2006, 04:26 AM
Planted Tank Guru
Join Date: Dec 2005
Location: Sacramento, CA
Posts: 21,015
BBA almost always means too little CO2 or CO2 that fluctuates too much. The light speeds up the growth of algae just as it does plants.

Hoppy is offline  
Sponsored Links
post #17 of 20 (permalink) Old 06-04-2006, 04:50 AM
Planted Member
Join Date: Dec 2004
Location: Houston, TX
Posts: 184
Hoppy is dead on with that about BBA. Crank up the CO2 and maybe try an every 3-5 days water change for about 2 weeks. ALSO-- 2 times the suggested dose of SeaChem EXCEL for a week or so (and hitting it really hard after water changes) has worked very well for expediting the departure of BBA-type algae.

Lighting-wise, I have alwayd done the 9-10 hours continuous without issue.
jsenske is offline  
post #18 of 20 (permalink) Old 06-04-2006, 06:03 AM
Everyone has an opinion
DiabloCanine's Avatar
Join Date: Aug 2005
Location: Greenwood
Posts: 1,676
A 15 amp digital timer is a cheap but wise investment at your local home improvement store. It will allow you to occasionally sleep in and find the best light duration for your conditions.....DC

Originally Posted by madbreeze
I typically turn on my lights in the morning when i wake up and shut them off when i go to bed. This means they are on for as much as 14 hours a day (though often less).

Should I be turning them off earlier in the evening? Am i possibly harming my fish? There are plenty of plants for them to hide under and a "cave" as well, so I figured it couldnt be too bad for them.

I have very little algae growth and 3 otos so i thought leaving the light on would be good for them at least (i give them algae wafers as well, however.)

my plants and fish all seem healthy. nitrates ~10ppm.
DiabloCanine is offline  
post #19 of 20 (permalink) Old 06-04-2006, 07:33 AM
Planted Tank Guru
Betowess's Avatar
Join Date: Dec 2004
Location: Skagit County, Washington State
Posts: 3,199
Originally Posted by Ds11375
Ok tks Hoppy. I'll try to increase it slowly. I'm just getting ove a bout off BBA. Something in my tank is out of whack and I'm still trying to figure out what it is.

A 55 AHS on a 15G is a lot of light. So you might be better off in the ~ 8 hour area. I have an AHS 55 watt on a 26 bow and use to have some AHS 36watts on a 15 gallon and a 10 gallon and those were plenty.

I tend to run an ~ 9 hour photoperiod from 1pm to 10pm on my two main tanks. Works pretty well for me so I can see the fish when I get home after 7PM. But I manually turn them on for about 45 minutes in the morning for a fish feed - before I go to work.

Three Tanks...Eheim 2128 & XP3-90G, Eheim 2128-65G, Eheim 2232-25G.... Tek 4x54 watt T5-90G, Aqualight 96watt PC 65G low tech, 65 watt Aqualight-25G.... Hydors-90G & 65G ... Flourite in 90, 65, & 25 Gallons, .... Auto Water Change/Auto dosing on 90 & 65 gallon..... AGA member......
Betowess is offline  
post #20 of 20 (permalink) Old 06-04-2006, 09:13 AM
Planted Tank Obsessed
rrguymon's Avatar
Join Date: Jul 2005
Location: ABQ NM
Posts: 419
I run my lights 9 hours. They are on a timer. Works great.


50g, Eco complete, AH 4x55w, Pressurized co2, Azoo reg and controller, Filstar xp3 filter.
rrguymon is offline  

Quick Reply

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:
Please enter a password for your user account. Note that passwords are case-sensitive.


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:


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.

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode

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
Trackbacks are On
Pingbacks are On
Refbacks are On

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