McLumpy
Aquarium Advice FINatic
Don't feel so bad. I did the same exact thing. I bought an "aqua fern" that was listed as aquatic from my local Petsmart. The funny thing is that it came in 2 different sizes, 3" and 6". The 3" variety was listed as aquatic whereas the 6" was labeled "semi-aquatic." Go figure. Well I bought it anyway. Originally, I wasn't too interested on keeping them. I had bought them with the intention of them being a food source for my snails. Ironically though it's still here and that's been about 3 or 4 months. I still keep my eye on it to make sure it just doesn't die off and pollute my water.
Yeah, well, I figured I wasn't the first to make that mistake... and I'm sure I won't be the last. I find it crazy though that these LFS's are misleading their customers. Not to mention, they just throw all of the plants together in a tank and don't list them properly as being semi-aquatic, aquatic, etc. Their customers can only reference what is printed on the plant ID stakes and when they list the plant's scientific name instead of the common name, it can be confusing.
I really like the plants that I got and if I could get away w/ leaving them in there for awhile, (at least until I can find replacements), I would. However, I'm a bit concerned about the Peace Lily. I know from doing research for my landscaping that it is highly poisonous when consumed by humans and animals and I don't want to chance my Pleco eating the thing.