Wc in a new tank

[Tofu Brady]

So i have 20 gallon cube and i was doing a water change and i was wondering if its ok to add a fish the same day of a water change

 

[Adamantium]

Sure, but is your tank cycled?

 

[Tofu Brady]

Sure, but is your tank cycled?

Yes

 

[Adamantium]

Yes

Then yeah, you should be good to go. What are you concerned about?