SPASMS?

[rdub]

One of my discus seems to be having "spasms" and sudden paralysis. Just seems to hang then resumes to normal. Not eating much for a couple of days.

Is this spasm thing a symptom of something specific?

[ILLUSN]

could be a paracite in the brain, or could be physical damage caused by a temp spike, in either case there isn't anything that can be done.