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Tunze 3181 Macro Algae Reactor. This can be placed in your sump or you can use it outside of your sump as stand alone. Comes with two soft hoses, one connects to the pump that is placed in sump and the return hose goes into your return section of your sump. It works great as it's the only reactor that actually spins the Chaeto so the LED lights hit all areas of the macro algae as it collect nutrients. I have the two power cords that aren't pictured. Paid $380 and used it for two months. It's still under warranty. I'll throw in a smart wifi plug so you can have it run on a schedule via the smart home app. I decided to go with an algea scrubber. $300 and I'll split shipping costs.