If you use the bleach, make sure and rinse really well. For cleaning any of my tubs/tanks I use chlorhexidine/Novalsan. Mixed with distilled water, a solution will keep for 4-6 weeks.
I cleaned the tank with just a capful or two of bleach and several gallons of water and then rinsed for probably about 10 - 15 minutes. Good enough? I couldn't smell any bleach when I was done.
~ Tanya
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