For almost 5 weeks I could not get passed the ammonia stage of my Nitrogen cycle, so I ordered 2 small active sponges to put one on each side of a 55 gallon tank. I started seeing nitrites and nitrates within a couple hours, and my cycle completed in 3 days. Looks simple, but works amazing .
I have been trying to cycle my 30 gallon aquarium for 4 weeks with no success. Finally I bought this filter and my tank was cycled in 4 days! Definitely worth it
I was hoping to get an instant cycle for a struggling tank nuked by meds (still had livestock) and to help start a new shrimp tank (with no livestock). It was winter when I ordered and USPS was late. I blame the inability to produce an instant cycle on the cold. I would have to order again during warmer weather before I say for sure or not if these give an instant cycle. All that said, some bacteria lived thru the cold and the sponges helped push the cycle along. After a couple weeks, everything was at the right numbers.
I ordered a small and these are still HUGE at that size! I cut one up and stuck it in two different HOBs and used the other as a normal sponge filter. For the money you get a lot of sponge and a good product to push along the cycle.
My tank was cycling for about 6 weeks with no luck. Placed this in the tank 3 days ago and Boom! My tank has cycled and cleared up! Thank you Steve for getting back to me immediately when I had a question! Would buy again a heartbeat!!!!
Spoke with Steve directly in order to ensure this was what I needed to accomplish my needs. He was very prompt and very professional, very fast shipping and clear directions. Will look forward to doing business with them in the future.