scrubber dying

[alum]

I am using 2000lt/h with screen : (h)27cm x (l)34cm
its that enaugh flow for that ??

http://algaescrubber.net/forums/show...1226#post31226

[Garf]

I am using 2000lt/h with screen : (h)27cm x (l)34cm
its that enaugh flow for that ??

http://algaescrubber.net/forums/show...1226#post31226

Looks ok for now. Patience alum.

[alum]

Looks ok for now. Patience alum.

Yeah! I am just thinking abaut sunlight direct to the tank.... and also before my tank was a mesh.

thanks Garf

[Floyd R Turbo]

If its any use to you alum, the magic flow rate is 22cm/second. Below that, the boundary layer restricts growth, above that shows no increase in growth compared to 22cm/s

Garf, so the 22cm/s you are talking about is the rate of flow that the water is falling down across the screen, correct? I don't think I recall this figure being discussed.

[RkyRickstr]

22cm/s

Can someone translate this?

[alum]

22cm/s

Can someone translate this?

the fall speed of water, no mater how big screen is.... maybe,,..

[Garf]

Photosynthetic organisms benefit/require a flow. Photosynthetic rates increase, relative of flow upto 22 centimetres per second. Flow rates above 22 centimetres per second show no extra photosynthetic benefit. It's thought that this is due not to nutrient delivery, but the removal of produced photosynthetic oxygen. If not thoroughly removed, this produced photosynthetic oxygen competes with carbon dioxide at the Rubisco sites within algae, causing stunted growth and wasted energy.

This is one of the reasons for questioning my own screens ability to function effectively, as it is so thick. Perhaps the algae underneath is severely flow (and light) deficient.

[RkyRickstr]

No I got that part garf.. im just asking about that measurement.. is there a gph translation?

[Floyd R Turbo]

it's not a rate of flow figure, it's a rate of fall.

[alum]

hmm.. now I can imagine the speed of water drop on my ATS screen more than 22cm/s.