Final answer needed by newbie re: seeding

[fishmom]

I am new to this board and have lurked and researched the build of our first scrubber. I am getting mixed answers in reading threads: the sticky says no seeding is required on a new scrubber, however, some of the threads asking this very same question say seeding is necessary. Also, I see threads of people offering scrubber 'seed" for $$.

Is there an authortitative source that gives a definitive answer to the seeding question?

Also, a separate question - more of a poll: Which is better horizontal or vertical scrubbers?

[bucks448]

Save your money...with flow, lighting, and the nutrients in the water the algae will grow. I started mine a week ago and I have light brown over the screen with specks of green starting.

Vertical scrubbers are more efficient so I would think better. You get better flow over the scrubber, and you can light both sides of a vertical scrubber.

[fishmom]

on the vertical: still 25gph on the flow? I was thinking a spray bar from an old cascade filter. Question is, what pump only does 25gph?

[SantaMonica]

No seeding.

Vertical is best, with bulbs on both sides.

Flow is 35 gph for every inch long the slot in the pipe is. The slot should be 1/8 inch wide.