We had been cycling our tank for 6 weeks attempting to get ready for an axolotl. No matter what we did the pH and nitrite levels were off. Once we put the Angels Plus active sponge filter in the tank it was ready to go in 3 days! So awesome!
Unfortunately it did not work for me. I bought three sponges for two different tanks and it has been about 4 weeks and neither of them cycled. I emailed a few times but responses stopped. Not saying it doesn't work just didn't work for me.
This thing cycled my tank in 3 weeks! I just doses ammonia after installing it and almost instantly nitrites appeared (I was dosing daily for the previous 2 weeks with no movement). Definitely worth the money!
I was on a timeline to cycle my aquarium and these got things going after a few days. Now I'm on day 30 of cycling and almost done, and I only added these filters around day 18. Thanks!
These filters are awesome , cycle stalled (2 ammonia , 4 nitrite)24 hours after putting two in a 75 gallon to seed my filter 0 ammonia , took another 3 days and nitrite 0 . Don’t listen to the bad reviews and give it a try! Wish someone told me about these sooner. Big thanks to angel plus