aquarium vacuum

I have several dumb questions about water changes/treatments and a few other things... Call me a newbie, if you'd like, and my apologies for the barrage of questions... [This is what you get when you combine a writer with a fish keeper, I guess] First the history: Up until now, I've had smaller...

Hi! I have a 10-gallon with 6 rasboras and a handful of snails. Used to have a betta but he passed o last week. :( Whenever I stir up the gravel to move an ornament, tons of poop comes flying up. Once I took out all the gravel to replace it with a different color, and the tank was disgusting...