biological filtration

I know this is a long shot but. I’m wanting some established fish tank filter water to help my cycle. I’m located in St. Louis, MO. Anyone live close? Anyone know where I can get some? Local fish store was trying to sell it and I was somewhat off put by that considering I’ve spent a good chunk...

Hi there. Need help with medications. I have a 10 gallon freshwater with two male guppies. 2 month Fishless cycled tank that has had fish for a little over a week. Water parameters are good. These guys have been in the tank for about 8 days. Saw some light stringy poo from one of them, and now...