How long do you have to wait for the tank to get ready to put in a catfish?

When you get a new fish it is important to take it straight home! then You place the bag the fish are in, in your tank. wait 10-15 minutes before adding some of your tank water to the bag. wait for 5-10 minutes, then carefully put your fish in the tank with a net. wait 24 hours before feeding them.

Before you buy your fish make sure you leave the water to set for at least 5-7 days.

So to put a fish in a new tank it takes around 15-25 minutes.