air pump power?

Question

ok have had the sam air pump for 6 years and it finaly broke and mijer was having an air pump sale so I bought the mijer 60 gal double output lung-500 for my 20 gal i figured since it's a 60 gal pump it sould be a lot stronger than my 5 gal one. but I don't see a huge difference. I only hav it going on one of the out lets but I'm going to conect the two with a t vale for more air. so my questions are
1. will I see a big difference when I connect the two?
2. is there any thing wrong with this air pump?
3. is there a real differance bettween an air pump if it's for 10 or 80gal?

Answer 1

If I'm understanding your question correctly, your new air pump has two nozzles for connecting air tubing, but you're only using one - this means one side is working to push air against the water pressure inyour tank, while the other is just venting the air to the air. If that's case, I'd be surprised that you get any air bubbles under the water at all, since the nozzle venting to the air has no resistance. If you use a T connector to connect both nozzles to a single airstone or ornament, you should notice a huge difference.

The main difference between an airpump for a 10 and 80 gallon is power - there's more height to an 80 gallon tank, so the pump has to be more powerful in order to push the air down against the greater weight of the water above it (if it is at the bottom of the tank).