While spider plants (Chlorophytum comosum) are a popular houseplant, they should not be placed in an aquarium. Spider plants require very specific conditions which can be difficult to maintain in most home aquariums. The plant needs plenty of light and humidity to thrive, along with warm temperatures ranging between 65-75 degrees Fahrenheit. Most tanks do not provide enough light for the plant to survive so it is best to keep them out of your aquarium if you want them to remain healthy and vibrant. In addition, spiders cannot tolerate large fluctuations in temperature or water levels, making it more difficult for them to survive in an enclosed environment like an aquarium where these things can vary drastically from day-to-day depending on what type of fish inhabit the tank and how much maintenance is done regularly. If you're looking for a low maintenance aquatic plant that will flourish without too much fuss then try some floating plants such as duckweed or frogbit instead!