I just got my small (but remarkably powerful!) airstone tonight! My Danios love it (they have been darting in & out of the bubbles) and Rocky has moved to the rock closest to the bubbles and is just chillin' & enjoying the motion!

But I am SOOOOO upset--I returned an unneeded pH kit to a lfs (I'd never bought fish there) and basically just did a trade, pH kit for one more Oto! (Named him/her Georgie!) Georgie seemed fine on the drive home, I let her acclimate in just the bag for 20 minutes, then added my tank water twice and let her acclimate for about 15 more minutes. Then I netted her & placed her in the water. She promptly swam straight toward the rocks, buried her head in them, and DIED!!! I don't want to "return" her, as I am wary if I try to get another Oto from there, so I just gave her a quiet burial. I just will go to Petco where I got Fred (who is doing so great) and get another friend. I know Otos are sensitive, but I just feel so bad for Georgie!!
Thanks for listening to me rant! I'm sure this won't be my last experience like this, darnnit, I really liked this one!
Sharon