So I decided to get cories as my schooling fish and I so far love them!! Anyways, I have a couple questions. First, I have some shells in my tank and I remember that they can be cut buy sharper surfaces, should I remove my shells tomorrow? I completely forgot I had them in my tank before I bought them. Second, algae wafers, how long do I leave them in the tank before I remove whats left? Just over night? or until its all eaten?
Thank you!
Thank you!