I have the weekend plus two days off for Mardi Gras and my fish lives in my dorm with me! I'm bringing him home for 4 1/2 days. I have a 2 gallon KK for him to stay in but all my safe plastic plants are in his current tank which is cycled/almost cycled. Should I get him one or two other plants for his tank while we're in town or would some gravel and a cup be fine? Would I be able to take a plant or two from his current tank and put them in the temp. tank? Would that cause problems when I add them back into the cycled tank?