I bought the 6025 (smallest nanostream) for my 20g tank. I already have 2 Seio 620's in there, and this just tops the icing on the cake. Perfect amount of flow... The magnets are an awesome idea. The 3D positioning of the nanostream is awesome as well. I now have the perfect amount of flow in my tank.
Worth the $$ IMO .. but can't say how they will compete against a Seio (longterm) . The magnets and *small* size of these powerheads make them that much better than a Seio.
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20g BB Mixed Reef // Coralife 150w HQI // AquaC Nano // Koralia 1 & Seio 820 // Jager 200w // AC50
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