So I gave my buddy my 30 gallon and a couple fish, problem is he doesnt have time to cycle it, i gave him two of my filters with media Ive been using and I also advised him to fill half the tank with water from a local pond. he already put one fish in and so far it hasn't shown any problems but if you guys can offer any more advise or maybe a recommendation on how long he should wait before putting in the other fish, or recommendations on precautions, i know its bad not to cycle a tank but he didnt have a choice.