Hi all! First post! I created a closed 1 gallon water vivarium out of a clear sangria bottle filled with my currently neon green pool water. It has maybe a few crawling things. I saw one maggot and some other bug coiled up. It has LOTS of algae. It DOES NOT have any specific aquatic plant that I saw coming from the water. I didn't even see accidental seeds. What it does have a lot of is plant litter, including lots of leaves and lots of flower petals that flew onto the pool and eventually into the skimmer, since I did not want to put anything in there that didn't come from the pool and the pool has no soil. My question is, is there any danger of the closed water vivarium exploding due to fermentation or decomposition?