[Good quality non-linear air pumps]

how many nano pumps do you need for a 20 gallon tank?

 

[Hello from Utah]

I am Cindy and am still an novice fish keeper. still learning

 

[Sponge filter]

so, in looking at the inline sponges and the pre filter sponge i had a question. do i need to use a water filter with the prefilter sponge AND the inline sponge or do i just make a choice and thats it.

I have a 20 gallon that i just stated and its still cycling with the side filter.