cycling display tank how keep the fish safe

[castroantonio]

I have a 300 gallons tank since 2007. Right now i want to reset the rock and clean up with muriatic acid, and begin again with new aquascaping.. and new sand and water .
But i have 6 big and medium size fish , that i going to leave in 2 QT 45 gallons each one..
The fish will be there for 2 months while the display tank do cycle..
How can I do for keep ammonia and nitrite low levels in the QT??
There is any media filter for ammonia and nitrite??

Thank you for your answer!!

 

[HumbleFish]

Just take some LR from DT, and put it in the 45 gals. Good circulation pumps in each 45, and you should be good to go!

 

[HumbleFish]

Or if you're wanting to acid wash all your rocks, pickup a couple of Aquaclear 70 HOB powerfilters. Either stick the sponge inserts down in your DT sump for one month before you break the tank down, or buy some Bio-spira to "seed" the sponges. The point is to transfer some bacteria to the sponges, so you have biological filtration in QT.

 

[scuzy]

Amquel and prime works too since you don't have inverts and is not dosing with needs like copper.