I hate my Chihiros dosing pump so much, that I am considering the Seachem Sentia. They look garish, but if they work I will live with it. I don't know why Seachem/Aquavitro doesn't just sell them online. I think there's one online vendor in the US, and that's it. Maybe I will wait and see how Jay likes the Kamoer first. I am actually manually dosing my two 60cm tanks right now, and will probably start manually dosing the 150 after this next water change on Saturday. I have a Chihiros 4 head doser brand new in box that I refuse to install on the 60U, because the one on the 150 keeps messing up big time. Either it doesn't dose, or it double doses, and I squarely blame it for at least the cyano not getting under control in that tank. It also dumped most of a bottle of Pristine into the tank about 3 weeks ago (thankful it wasn't the adjacent bottle of Excel). Otherwise, I just want Santa to get rid of the Nautilus in the basement, so I can steal that room for MOAR tanks