is it possible to use the redsea mature kit on an already running system?

[Andrisca]

Hi guys i’m curious
is it possible to use the redsea mature kit on an already running system?

Coz, I already have 100gal system mixreef with a plenty of fish (3 actually) on it, and i’m trying to use that product.

thanks in advance

 

[DungSl1nger]

Right out of the manual:
Notes:
This kit includes all supplements you need to mature the system. Do not add any other supplements or livestock (dead or alive) until advised to do so as part of the program.

Edit: This is meant to be a starter kit. Midway through the instructions they say at CUC but nothing about fish until day 22.