They're not like "Your cat will die if he licks it" toxic they're more like "Your cat will get a sore mouth and nauseous if he eats a bunch of leaves in a single sitting" toxic.
My fish have eaten and stripped pothos before (and recently) with no problem.
Pothos, Philodendron, Homalomena and many others, they are all Aroids. Poisonous, so don't eat them, fish generally know that. But they are the best plants for decorative aquaponics.
If you are worried about having the roots directly in your tank, plant them in a pot with some neutral medium, clay pellets, pumice, or coconut husks.
Low Light Plants to Grow out Aquarium Top
Hello all, Since my Buenos Aires tetras don’t really like me growing plants in their tank (they even take out hornwort faster than it grows), I was wondering about plants to grow out the top. I already have lucky bamboo in there, but was looking for other things to grow as well. The problem is...www.monsterfishkeepers.com
I Wouldn’t take the risk, my dog ate something poisonous and died last year, it’s not a nice experience.
I never found out what it was and the $10K autopsy and toxicology test was way out of my price range and obviously the dog would still be dead so I couldn’t justify it.
If you have the doubt in your mind then find another plant or you will be constantly stressed about the dog munching downn a stray leaf.