I just purchased a Fluval 406 "Pro Kit" to replace my 405. https://www.amazon.com/Fluval-406-Aq...rds=Fluval+406
The Kit basically came with 4 extra sponges and.....
Sunsun-China.com Bio-Rings, Active Carbon and Bio Balls.
Has anyone ever used these SunSun-China.com products? My big red flag is the grammar (Usage = Usige, Take = Lake and my favorite.. From the experiment shoeing that... wait Experiment!!! omg lol). Anyone ever heard of them? They look fine, but since I've never used them I would like some opinions. Worst case, I trash them and move on with my life as they are free.