Broken tank, 1 filter 2 tanks
Ok so I had a 120gallon tank in my apartment and it decided to come apart at the seams and spew water everywhere. I managed to save about half the water and all the fish by tying a rope around the top of the tank as tight as i could and then I stuck a piece of doweling between the glass and the rope and then i twisted it around and around until the glass came back into place. I also emptied about half a tube of silicone on the corner.
ANYHOW after everything was settled I borrowed a 55 gallon tank from my friend, filled it with fresh water, transfered all the fish into the 55, and moved my filter over. That was like 5 days ago and all the fish seem fine. It doesn't look like the new tank needed to cycle. I guess because everything was straight out of the old tank except for the water.
So now I have a 55 gallon tank with all my fish, a few plants and my filter on it. I also have a new 120 gallon tank with rinsed substrate, all new hard scape, and most of the plants. It's only been filled with water for like 2-3 days and it a bit cloudy.
My question to you guys is: what would be the best course of action when transferring my fish with only one filter? Is a filter absolutely necessary in the cycling process? (I don't really want to buy another one)