:thumbsup:
I totally agree! Nuttin' like bubble action! I shoulda specified why I said the res. temp should be 56-58 degrees.. Thats when the oxygen molecule in the res is at it's richest content. You still have oxygen levels in the res. at 68.. Just not as much present even with an air stone.. Good rule of thumb tiny! It's always a pleasure reading your reaction or response to a post!hehe

Ga.