vanish

Hi, I have a Fluval Evo 5. The tank has been running for about 6-7 months now, absolutely no issues until now. I had a pike blenny and a elongate dottyback (too small of a tank and overstocked, I know, was planning on moving them to a 16 gallon) until both vanished one day. I pulled apart the...

I can not find my Scarlet Skunk since about 10minutes after I added him to the tank(2wks ago)... I have a 20gal long with about 16-17gal living space and I check everyday and I still can't find him. I during the day and right before I lay down for the evening and I thought I'd at least see him...