Is it normal?

[nixer]

he's about 240grams and this is the first time he's done what I've described and i've had him sinve october last year same temps. but maybe he may have changed his tastes for his temps...? and yes he does use his warm side .. this was again a once in a lifetime occurence that lasted no more that 5 minutes... I just got concerned because i've never seen him do that before.. and also because i read the they try to drown mites that way but there are no mites and he didn't stay in long at all...

well if it was only 5 minutes i wouldnt worry about it too much.
as for mites if you think you might have them or there is a chance you could get them at one point i would get some provent-a-mite