So my rays will be fine during the first 2 months in my 125 then I take it? Btw I think it's a 150, which is a little more water dilution, but other than that, if tig phish had his in a 120 for that long, mine will be fine. Still my water is pristine clean right now and always is, ample filtration, I've sold almost all the stock so far as well, and bigger tank is no problem (TAX REFUND PRESENT). Also, I have 4 airlines going into tank with one going to a sponge filter in the tank as well, and a spray bar that agitates the top water too.
If the tank is 4'x2'x2' as you said on your first post, it is 120 gallons.