I bought 2 large of these active sponges for my 20 gallon tank because I've been struggling for sooooo long to cycle my tank. I wish I've known these earlier. My ammonia was at 4ppm, 0 nitrites, 20 nitrates. Now I got these, 24hrs later, I have 0 ammonia, 0 nitrites, 40-80 nitrates! Thank you so much for this product!
Received my filter on 9/29 and immediately placed it in my tank. I chose not to set it up with an air pump, but instead cut some of the sponge up and placed it in my canister filter, squeezed the majority of the bacteria out into the tank, and left the sponge in the tank. Doing this again, I probably would have set up the two filters to run together for a few weeks until my main one was established, it would have made my life easier and I have no doubt my tank would have been cycled within a day or two.
Once I had the sponge in, I tried a fishless cycle using the ghost feeding method and quickly realized I was wasting my time, and I needed to try something else. I purchased Dr Tim's Ammonium chloride and have been feeding my bacteria friends with that. It's been a week since I've been feeding them this way and I have close to 0 ammonia consistently after I drop more Dr Tim's, 5 nitrite, and 5 nitrate. With some more time and a few water changes to remove some of the nitrifying bacteria, I'm confident the nitrite levels will drop and my cycle will be completed.
I had tried to do a fishless cycle for three weeks, using Dr. Tim's Ammonia and Frtiz Zyme 7 bacteria. I was testing using an API master kit. After three weeks, I still hadn't cycled. It seemed my cycle was stalled with a nitrite spike. This could've been my fault. It seems fishless cycling is hard for beginners.
I discovered the Angel's Plus Active Filter when I was looking at fish forums. I gave it a shot - they are in New York, and I shipped with UPS Ground to Arizona (September, so still really hot in AZ). I placed an order on Wednesday. As promised, the filter arrived by Saturday. I set it up in my aquarium, along with the dirty water in the bag. In my case, it took about 4 days to cycle. I added fish on day 2, and by day 4 I had zero ammonia and nitrites, and had 5 ppm nitrates.
Highly recommend this filter. Made it stupid easy to ensure a safe environment for my fish. I would definitely use their filter again.
I was pleased with the seeded filter. Price was great, shipped out quickly and my tank finally jumped into the second and now final stage of cycling. I wished I had bought this from the beginning of my process instead of waiting for 3 months to try to let the cycle happen naturally. I plan to keep the filter in my tank as a back-up in case I ever need to kick-start another tank or in case I ever have a cycle crash for any reason. Very pleased. Thank you for offering these!
Cycled our tank for our axolotl in days.