I am getting a 3 inch lion fish for my soon to be 180g FOWLR. I currently have a reef 90g. My question is this. My 180g will start cycling on the 23rd, and I need to still store the lion. I have 3 options. Put in QT (10g), put in 90g since he is only 3", or place in a fish holder box and place that in the 90g. Which would be the safest and easiest?