While you are waiting for the 150 to arrive you should go and buy another sponge for the 150 and place it in the biowheel 125. That way it will be building up bacteria on it and you can transfer it to the 150.
If you buy some floating plants you can add them right away and they will help keep the ammonia and nitrite levels much lower as they feed from the water column.
Removing the carbon is a fine idea. Save it for when you have to remove meds from the water in the future. And don't worry too much about turbulence affecting CO2
levels. Unless you are using added CO2
, the tanks will just get to equilibrium with the atmosphere so the turbulence doesn't affect too much. If you add CO2
using a DIY
setup or compressed CO2
, then the turbulence will indeed make you loose most of your added CO2