Hello everyone! I just wanted to alert people about this poisonous aquarium ornament that I purchased from Walmart about a week ago. I got it because I thought my betta would love an extra place to explore and swim through in his 10 gallon. I got it from Walmart and smelled it before I bought it...

Yeah so, odd thing that happened. One of my tanks (5 gallon) killed off 2 guppies. I could not figure it out... So tried 2 minnows. They died. I cleaned out the entire tank, threw out the rocks, plants - all that stuff. Cycled and all, I tried again. I thought "maybe it is the filter" so when it...