Blenny exhibiting odd behaviour

[bluto]

Hi, I have a question.
When my 90g finished cycling about 2wks ago I added 2 small false percs and a bicolor blenny. About 2 days ago I noticed the blenny diving into the sandbed (not headfirst, more with his tailend) almost as if he were trying to scratch himself. At about the same time I noticed he finally allowed my cleaner shrimp to approach him and start cleaning him (the shrimp had been trying since I got him about a week ago). My first thought/fear was...ich. But it's been two days and I still can't see any white spots or markings? It now seems like he might just be trying to kick up food laying on the sandbed, has anyone else had a blenny (or anything) which exhibited this kind of behaviour (and it wasn't ich)?
He's an odd little guy anyway...so maybe he's just 2 beers short of a sixpack??
Thanks.
Bluto

 

[bluto]

Oh, by the way...
After I added the 3 fish my system went thru a 2nd, mini cycle. Am rose to .25 and NO2 rose to a high of .2 however those readings have since come down. It had occurred to me that the high nitrite readings (which lasted for 3-4 days) might have caused stress and contributed to a parasite infection??
Not sure if this is a behavioural thing or if I should post this question in the "Disease" forum?
Bluto