In general, no. If its been a long time since the last water change, you might want to slowly acclimate to new water. But I would just fill up the new tank and run the new filter on it at least overnight until the temp. is where it should be. Then move fish and old filter. You might want to put fish in bucket and slowly add new tank water. But if the water is close in temp. pH, etc. you can just net them and put them in. No reason not to start with 0 nitrate.
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