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I plan on getting a larger tank when funds allow, yes. Im not sure about 10,000, but that would be great!
I gotten similar advice as well, but birds poop on my roof, and i also have squirrels that sun around on it sometimes too. Id rather not chance it, and using that minute amount of bleach doesnt concern us. The peroxide basically dissolves the bleach into gas and once it does its job, it becomes water. Its mostly to combat the bacteria we cant see, and the algae that can grow in my tanks really easy.