I'm setting up a 20g however when i got the filter from the person it didn't have the bio filter, could i just go to the school and pick up a simple sponge? Maybe something like this
also I've heard the fastest way to cycle a new tank is by adding already established media, how do I go about that?
I'm a bit new to this, so please bear with me. :(
Last Friday, I added an entire bottle of Tetra SafeStart to my 20 gallon aquarium, hopping it'd speed up the cycling process. I already had two comets and one fanfail in the tank (yes, I know the tank's too small, but the friend I adopted them...
A friend of mine is giving me a 20 gallon tank (!!!!)
My only problem with this is what to put in it. I was thinking saltwater at first, but I honestly don't think I have the energy after this semester. So, freshwater it is.
That said, what could live comfortably in a 20 gallon? I already have...