so right now i have a 20 gallon planted which i want to transfer to my 38 gallon. my idea is to use eco complete planting substrate, and to take out half of my water out of the 20 and put it in the 38. adding established bio media, new water, old water, plus the water in the bags of substrate, how long are we looking at before i can put fish in? i am also going to transfer all of the plants when setting it up. i was thinking at least 24 hours but i'm not sure so i'm asking ya'll.