Hello, I have purchased a Juewll Rekord tank ( approx 60 x 30 x 30 cm ). I filled it up last night ,added tap water treatment, and Stress Zyme. I put gravel and bogwood in ( both had already been in someone elses tank ).Someone at work suggested adding some anti white spot treatment, which I now regret doing.The instructions said to remove the carbon filter, which I have, and I have also removed the white filter pad, which sits on top of the carbon sponge. I have two questions , 1. Should I put the carbon and white filters back ? ( There is still green and blue filters in the tank. 2. Can I add a few fish at the weekend ( 4 days ) Thanks for any advice.