Media Reactor with 95 GPH Pump – For 10-75 Gallon Tanks, Up-Flow Filtration for Efficiency, Includes Adjustable Water Pump, Reliable Filtration System, MR-20

Was looking for a reactor that would fit in the back chamber of my BioCube 29 and this fit the bill. Pump has fairly low output as many reviewers have stated but it works for me so far with PhosGuard. A larger replacement pump is so cheap that I'm not concerned about the output. I'd buy it again.

I bought this to use as a chaeto reactor on a 45 gallon saltwater tank without a sump. I wrapped some LEDs around it and put some chaeto in it. Works really well and only took about 10 minutes to set up. What makes this PERFECT for a chaeto reactor is that the inlet tube runs all the way to the bottom of the reactor, which forces the water to rise through whatever media you’re using. So for a chaeto reactor it forces all the water that flows through it the reactor to flow through the algae, which maximizes the effects of the algae.

I have been using this as a gfo reactor for a while now and It does a good job. Only issue is the suction cups don't seem to wanna hold the hoses very well and they slip out from time to time and are more noticeable in the tank. Cleaning isn't hard but is still harder than I would like. The sponges get clogged up fairly easily and can cause performance issues if u don't stay on top of your maintenance. Over all I will buy another one for my other tank. The hang on option is good but it is better suited for a sump.

Bought this for my saltwater tank because I needed a reactor on a budget. The reactor does feel like it would be easy to break so I would take care when assembling. I am running gfo in it and I had the water flow from the pump set too high so I had some gfo spill into my sump/ refugium. Adjusted the flow and now it's good to go. Does it feel cheaply made? Yes.(You get what you pay for) Is the pump strong enough? Yes. Hence the gfo spill Does it work? So far with GFO yes. After just 10 hours of running it my phosphates have dropped significantly. Overall I am pretty happy with the purchase. So if you've spent most of your money setting up your tank and you need a reactor on a budget I would recommend this one. 5/5/18- Did a carbon gfo mix and packed them in so the carbon wouldn't get ground down by the gfo. Valve is fully open and pump is pretty weak so I eat my words lol. Works good with just gfo. Carbon gfo mix not so much. Still would recommend if you are on a budget.

Nice reactor for the price , no leaks whatsoever so far , took extra care during assembly , this is for my 30 gallon aquarium , filled with the proper amount of media for my aquarium the pump is not the most powerful pumps 90 gallons per hour that enough to turn the water over 3 times . The flow through the media is proper gently tumbled the media does not over churn it with us incorrect . Overall in pleased with the reactor now the long 3 to 4 week to let the bacteria in to build up .