Hi welcome to the forum! Just a few questions about your tank so we know a bit more about your tank as a new member

How old is the filter you have? How big is the new tank? And what do the other fish look like?
With the filter, as long as its underwater your fine the outlet can poke over the top to like pour the water into the tank if you see what I mean but to keep it quiet if its submerged it does the same job. I used to use the interpet filters a lot a few years ago but mine kept getting really really badly jammed all the time like at least once a week and usually in the middle of the night which when its in your room makes you freak out lols. If it goes well for you forget what Ive said but perhaps consider a back up filter like a fluval U2?
Wills