I would guess that you lost the majority of your benificial bacteria... it was all over the inside of the old tank and on anything in the old tank.
I would do frequent water changes... every day or two until the water parameters level out. I would also consider running activated carbon for a week or two. The bacteria in the filters should propragate pretty quickly... but not instantly.
I would do frequent water changes... every day or two until the water parameters level out. I would also consider running activated carbon for a week or two. The bacteria in the filters should propragate pretty quickly... but not instantly.