Fishrockmysox
New Member
I have a simple question. I'm going to be getting a 40 or 50/55G tank in December or Early January... I want to have an under gravel filter as it seems it picks up more stuff? So can I use a sandy substrate to should I use something like Small Creek Pebbles(available at Petco)?
Also if you use sand in a tank wouldn't the sand turn into mud?
Also if you use sand in a tank wouldn't the sand turn into mud?