Sump light on 24/7?

[freezetyle]

do you have any macro algae in your sump? i have heard that keeping some types of calurpa(sp) in constant light can cause it go go sexual and kind of nuke your tank with nutrients. Cheato isn't supposed to do that though

[mark]

around 2 years 24/7 with Chaeto here

[banditpowdercoat]

Cheato, but GHA kinda molested it

[e46er]

i run mine on the flipside of my MHs so the sump is lit 18 hrs a day

[Ryan]

Doesnt anyone remember grade 9 science class? Plants need darkness to photosynthesis properly, studies have proven this. You want the most out of your macro algea it needs atleast 10hrs of darkness with a 12 on /12 off pattern showing the most photosynthesis in plants.

[mark]

chaeto ball, grapefruit to basketball size in 3 weeks, see no problem with my 24/7

[pascalsimpson]

plz

[Ryan]

Originally Posted by mark

chaeto ball, grapefruit to basketball size in 3 weeks, see no problem with my 24/7

I am glad your showing good growth but growth doesnt mean photosynthesis which is what takes out nutrients.

[nlreefguy]

Originally Posted by Ryan

Doesnt anyone remember grade 9 science class? Plants need darkness to photosynthesis properly, studies have proven this. You want the most out of your macro algea it needs atleast 10hrs of darkness with a 12 on /12 off pattern showing the most photosynthesis in plants.

To say that nobody remembers grade 9 science class is on the insulting side, man. Sorry to point that out and not trying to be confrontational or anything. However, there is something to what you say about the effect of darkness on photosynthesis efficiency... see the ideas in this link as an example:

http://www.aslo.org/lo/toc/vol_8/issue_3/0338.pdf

[Ryan]

It wasnt meant to be offensive so step away from the computer, take a breath, and lighten up a little.