You might wanna put it in before, it can't hurt to get things going before the fish get in there
but good luck!!!!
How about i put a bottle in now then, and grab another and put that in the same time as the fish next week? I'm not bothered about the small extra cost, just don't want to have any side-effects from possible overdose (though it does say add more when water changing, which i will be doing when i get the fish of course).
Oh btw, when am i supposed to start seeing nitrite and nitrate? I have a 5 in 1 test kit but unfortunately it doesnt include Ammonia (need to get a test kit for that soon). Tank has been running for 8 days now, and the strip still shows absolutely no colour on the NO2 and NO3 patches. I put flake food in a few days prior to getting Ammonia, which i have been using a couple of days now, and i have also tried other bacteria-in-a-bottle products.
Thanks