Mgamer20o0 BobsTropicalPlants.com Staff member Jun 4, 2003 31,221 19 89 www.bobstropicalplants.com Jan 27, 2007 #11 the only thing to change would be carbon if you use it. i dont change my sponges or bio media. they are fine as long as you clean them with some tank water. no need to waste money on them.
the only thing to change would be carbon if you use it. i dont change my sponges or bio media. they are fine as long as you clean them with some tank water. no need to waste money on them.
