upgrade

[macci]

Hy friend gonna upgrade my tank from aquareef 195 200ltrs to redsea max 650 650 ltr any one help me the best way i do it

should i make new water and then i transfer fish and corals

should i take all my 200 ltrs water and top up with new water and transfer evreything

should i take 100 ltrs only and let the water mature

or any other ideas please

 

[fl2re]

Try to use as much of the old water as possible. It'll keep things consistent.