G&D's Foray Into a 90G Tank (Take One)

[Leah]

I do not mean to rain on your parade, and hopefully someone else will chime in here.

I think you have the right idea sort of with the black out, but you need to cover the tank for three days. Do not feed the tank or even peek at it then on the third day you need to do a water change...just can't remember how much!
Then slowly turn your lights, say half a day for 2 days and full on the 3rd.

Leah