alergic__1 said:ok...I had a 5 gallon tank...then I put some of that water in my new 10 gallon tank...and included the rocks...I did not wash anything...then I put the rest all new water.......that was all I did...and then put the fish in....I didn't know anything about cycling....so...what should I do ?? change ALL of the water....and clean all of the rocks.....and then put in my fish ??