Finally got my air pump yesterday, ran my line and seem to have a weird issue. Here's how I'm setup...
Tetra 60 - 1st line goes into the 20 gallon, splits into 2 lines; one goes to a sponge filter and the other to an air stone. 2nd line goes into a small 2.5 gal tank with small air stone.
Everything works, but the air stone in the big tank. I've switched airstones, moved things around, unhooked/turned off the 2nd line and switched the splitter. Nothing has worked thus far. I can get the airstone to work, just not with the sponge filter going at the same time.
I assumed a 60 was more than big enough as it's just 2 lines in a 20 gallon. The 3rd line was just added as I wanted to push some water around a bit in the small tank.
Any advice on this? My new shrimp are happy, but it's driving me nuts as I want to get my lines squared away so I can leave the tank be for a bit.