I have a standard 10 gallon and have two baby comets. I hear they will grow huge, need cold water, and I do not have the money to get a bigger tank, not even a 20 gallon. I was hoping to adopt them out to someone who can take better care of them. I live in South Louisiana. I am watching ammonia levels and doing half changes of water every day or every other day. I have a 60 gallon carbon filter that provides filtration and oxygen, but I cannot afford a bigger tank unless someone knows some cheap alternatives? My budget is basically under $20 unless its a very big size for a good price. What are some stores that may sell tanks at discounted prices? My eyes are open for local garage sales.