Im calling him gone. Today now marks two weeks that hes been missing. Seems two weeks in a 7.5g tank means something happened to him long ago. :-(
No ammonia spikes. No nitrates spikes to suggest my system simply processed him either. Stupid fish.
Time for a replacement! Any ideas? Right now there is a tailspot blenny in there loving life, two sexy shrimp, a porcelain crab, and some hermits and snails.
Im thinking clown goby, but no one here seems to have luck with them.