Can UV light help for planted tank?? not UV Steriliser

[clanbuster]

My friend wanted to start up a planted tank maybe due to me. i always keep on said how fun and beauty it is.

But when we went to a shop to purchase light. The shop keeper said should buy lighting with UV light tube. Can kill bacteria and reduce algue problem.

Hmmm, what i know that UV steriliser is for marine tank.
read here:http://www.aquarium-supply.biz/order...erilizers.html

Does UV light bulb help planted tank?? ( maybe not algue) does UV help anything to the freshwater planted tank???

[wf7850]

UV steriliser can be used for any tanks to remove algae but to use UV light? first time heard of.....

[|squee|]

Er... the shopkeeper gave wrong advise imho. UV light oxidises trace elements ( especially iron ) in the water, making them unusable to plants. Plants suffer as a result

Also, the purplish lighting will do no good to the plants too, as well as make the tank look weird.

[clanbuster]

[quote:6686bd6a81="|squee|"]Er... the shopkeeper gave wrong advise imho. UV light oxidises trace elements ( especially iron ) in the water, making them unusable to plants. Plants suffer as a result

Also, the purplish lighting will do no good to the plants too, as well as make the tank look weird.[/quote:6686bd6a81]

haha, i never see ppl using purplish light ( blue + white)
that true. why shop keeper try to make funny to me again