Hello all! I have been trying to search for everything I want to know so forgive me if I ask some questions that should have been obvious. My first (of many) question is about the aquarium that I will be using. I posted this elswhere and would like to get a few more opinions. I have a 20 gallon long that was used in quarantining fish and treated with copper. The tank has turned a bluish tint because of this, so I would assume that the copper has leeched into the glass and silicone. Could I still use this to house dart frogs? Thank you for any help.