I don't think he has parasites. I think you're right in that he just needs more nutrients. He hasn't been exposed to water since his seizures a month or so ago. I didn't want him to drown. He's been seizure free for a while now, and with him in the house I will try filling up the tub and monitoring him.
He's on duramycin 10 (tetracycline hydrochloride) right now. Is it okay to add vitamins and probiotics to the water with that?
Why is he on An antibiotic? just curious.