A man with quotes of his own work, do believe that their work is of the highest standard amongst the mediocre
Tetraman, you're still on validating, click the link you received in your email from TFF to become a full member.
The clown plecs can grow up to around 4" which would suggest with the rest in your tank they are not suitable and overcrowded (the messy buggers) but the are under teh following circumstances: They are all still babies that are 1" or less in size right now....
check your filter again anyway to ensure that it has not possibly clogged up again. When my tank did this, it clogged for about 3 days in a row till the water was cleared enough to stop blocking the propeller. Darn Fluvals, have a habit of needing cleaned often