How Mayn Hours Should I Leave My Tank Light On?

[chriscrozier]

Hi there, I have a 15 gallon (uk gallon) tank set up, with a built in tube light.

I have a variety of fish such as dalmation mollys, a fighter fish etc

Is there a suggested time which the tank light should remain on? I have a timer, but im not sure how long i should actually set it for?

 

[IcQb]

Is there live plants in it?

anywhere from 5-12h will do I s'pose... (depending on some factors)

Remember, no live plants + long light = algae

 

[Mr.Tan]

i usually leave my lights on for around 8 hours. live plants+light= great growth (i do dose ferts though so they never lack nutrients)

 

[chriscrozier]

Thanks, I have live plants in, i have been leaving mine on for 10-12 hours, but wasn't sure if this was to long.

 

[Aqua Tom]

Thanks, I have live plants in, i have been leaving mine on for 10-12 hours, but wasn't sure if this was to long.

Probably a bit long unless you are very heavily planted.

Tom

 

[chriscrozier]

I have it set for 8 hours now, thanks for the help!

 

[paulyoung666]

I have 2 plants in a 10 g tank and the light is on from 8-10 everyday , no algae in mine .....

 

[Aqua Tom]

I have 2 plants in a 10 g tank and the light is on from 8-10 everyday , no algae in mine .....

8-10 is either 2 hours light, in which case you wont get algae but your plants wont be to happy, or 14 hours light so you will get algae, just wait a bit longer.

Tom