The algea will only restrict the flow if you aren't harvesting the chaeto. So you aren't wrong, there would be more involved with this. And I am not a Triton user yet either, but I have been reading up on it a lot. They want die off and as much exposure and time with chaeto as possible to pull out the excess nutrients to reduce water changes. A reactor would achieve this, but would it need to be bigger? Possibly, my main point is that we don't have definitive answers we only have speculation either direction. I think it would be awesome if BRS was able to do testing with a reactor and see if they can achieve the same results so that those of us using RSR's or tanks that can't have a refugium wouldn't be limited from using this method. Logically none of the concerns brought up have been a nail in the coffin for me. But this is why BRS exists, they test these kinds of things for us and let us know if it's feasible or if it would work. Triton only "recommends against" using a reactor, but without a definitive no. This doesn't mean they are saying it won't work, but are saying that they haven't done enough testing to say that it will or won't. Which is totally ok, but not everything is black and white. Just because you don't harvest any chaeto in a fuge. Doesn't mean it's 1:1 and you can't harvest it from a reactor which is why it would "restrict flow". In this case you most definitely would need to harvest it once a month or more and just take some of the chaeto and throw it in the sump to get the "die off" for amino acids etc. I like the idea of no water changes like everyone, but I can't feasibly get a fuge at 10% and still keep my skimmer . And also to get a fuge at 10% I can't even use synergy reefs because it's only 8% of my RSR 350. So I am trying to think outside of the box, but there is not much research done here in terms of alternatives to the fuge. If Triton or BRS came out and said flat out NO reactors won't work at all because of A B C, that's what I want.