I have hang on back filter and Bacto- surge sponge filter kit so there was enough water movement . QT has not been cycled . Picture after I started to de-assemble tankNot seeing any water movement in the quarantine tank. I use a hang-on back filter with just floss to catch uneaten food.
Plus I use a small powerhead to create surface movement which is good for O2 exchange.
Then I'm assuming the sponge filter has not been cycled. So there is