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How is that different than nutrients in the water? If the water's got what it takes to grow algae in and ATS, then the water should have what it takes to grow it with a SURF2. It should be that...

Of course there are. Attachment was a good call in this instance - it's relevant. I did not mention it because diatomic marine algae does not always require it. But it IS relevant to this case -...

Thanks for the reply!

Yup. I get that. Thanks. ATSs/UASs - apples/oranges - not necessarily the same. However, in dealing with the question of the conditions necessary to get a SURF2 productive...

If you concur with my above post, a post in agreement would be most appreciated. Likewise, if you disagree with my conclusions, a post clearly explaining why would also be much appreciated.

Our...

OK. Thanks again for your replies. Let me see if I can recap where my questions stand, and move them forward. The essence of my prior questions were -

"If excess nutrients causes one startup...

Great replies! Thank you.

But I'm going to have to beg indulgences of you guys. I'm on the right coast. Floyd in the middle and SantaMonica on the left coast. And it's getting late here. So rather...

Thanks for the reply. But if I'm understanding the issue, it does not answer the question...

I get the fact that increasing the photoperiod will help reduce high nutrients (as evidenced by black...

Thanks! Same scolley? You betcha!

Thanks for the heads-up. Would this nuisance algae problem also apply equally for someone running successful NO3 and PO3 filtration? For myself that means a productive waterfall ATS. So I've got low...