lighting help

[ichise]

Hi guys ,

I read somewhere regarding the WPG doesnt apply to small tank under 10gallon .
Any explaination why smaller tank need much higher WPG ?

My tank is about 2.8gallon , so how much light should i have ?

Thanks in advance ~

[felix_fx2]

Is it the ocean free tank? The smaller few?
Wpg is only something the eventually become something of a guideline.

It also do not apply for very large tanks, due to the exposure of the light source to the tank. But no harm checking how much you have with online counters.

What do you intend to keep?

[ichise]

Hi ~ thanks for the reply

The tank is ABOUT width 22cm x 19cm x height 25cm , it comes with a hang on filter
Anyway I plan to make a small planted tank (low - medium req) maybe with 2-3 tiny fish .
I want to buy a light for the tank but not sure how many watts should i buy ?

[diazman]

Hi ~ thanks for the reply

The tank is ABOUT width 22cm x 19cm x height 25cm , it comes with a hang on filter
Anyway I plan to make a small planted tank (low - medium req) maybe with 2-3 tiny fish .
I want to buy a light for the tank but not sure how many watts should i buy ?

Depends on the plants you want to keep too. If you keeping moss/ferns, you may go with 9-11 Watts. Those don't really need high lights. No harm trying anything higher than that. Its all about balance. I blast my GEX "s" tank with customed 22 watts OSRAM spiral lightbulb (reason being, i enjoy seeing my plants pearl ). Algae are under control though

[ichise]

I see ... Ok thanks for the info

Edit:sms lingo

[Hipponianhzh]

May I know whether is led or t5 light better for plant ? Planning to switch to led . But worry .