Yay! It finally arrived!
I got my new Fluval U4 in the mail today. I already have a question! lol
I have a 37G tall tank with two fancy goldies in it. I was running a small DIY filter before. The DIY didn't create a current. The U4 has three different settings for current. I put it on the bottom output to agitate the waste on the bottom. It works great! But now my goldies are constantly swimming against the current where as before they were able to swim freely as they wanted.
So my question is should I set it to the gentle current setting (which doesn't clean as good) or are my goldies ok with a bigger current.
There is also a venturi but I'm not sure what that does. Anyone know?
Thanks for any advice!