Pretty much. I don't even wash out the bottles, (ok, ok, so I'm really lazy with this stuff... but, it seems to work just fine
). If you don't want to store it in the fridge, you can always use an extra bottle, upside down, of couse, with it's own aeration, on a constant drip, into your tank, so, all you have to do is refill the bottle everytime it drops to about half, (as the new half will still have some unused Miracle Grow in it), and this way, your tank will have a constant feed, (or, do the same with your rotifers, so that you don't have to worry about feeding them). That's going to be my final goal, after my tank and sump is all set up. It's hard enough getting out of bed at 5 AM, but having to feed everything is more than I want to do on a daily basis
. Also, if you don't already have a culture going, don't even bother with DT's.... I tried that and wasted a lot of time and Miracle Grow, trying to get it going... that stuff is essentially dead by the time you get it home... it just takes a while to start to stink.
Robert