the little prills will persist through several recyclings of your soil, but they are pretty much empty and you need to continue to add Osmo each time you replant. I suggest composting your soil between grows and rinsing it out regularly to help the prills release what they might have left, which is usually not very much if you went a full growth cycle with it.
OC+ is the way to go.
I have a friend who weighs about 135 lbs (up from 95 since I first met him and started helping him out) and he wanted to grow his own 6 plants. He is an experienced grower but he wasn't physically up to the constant chem mixing, worrying and expense of high-end grow juices he had used in the past, so I got him to try out OC+.
I told him all he needed to do was water them.
We used some Sunshine #4 and OSMO ONLY for nutrients at a rate of 1 tbsp/gal of soil. We got him started a little late due to a weird spring and all I had at the time were some 8" clones so we really were'nt expecting monster plants. We used 15 gal smart pots - a decent size for outdoors and usually only require watering every other day.
The growth is just short of spectacular. All but one of the 6 plants has thumb-thick main trunks and thick healthy stems everywhere on the plant. The 6th plant is a clone of a Big Buddha Cheese I have been cloning for the last 2 years - this is the last of the line.) I will post some pics in a week or so when I go back to see him.
The plants have had no other nutes and the lower leaves are completely deep green so far. Plants go through the Osmo a little faster in hot weather so it is important to watch these lower leaves to be sure they don't run out of food, and when they do, usually well into flowering, it is a good idea to give them what they need, and if you watch your plants, you should be able to tell what they might need or there are plenty of people in these forums who can help you.
I will post more as his grow continues to mature. He has no internet, or a computer for that matter.
Personally: I have been using Osmo for the last year indoors and I am very pleased with the results. I mostly use soil. Did Hempy with Osmo and it also worked great, but I just like soil.
I usually finish my plants off with FF nutes, if they show any need, in about the last 4 weeks and 1 bottle of each lasts a year or two (fewer applications).
I am sold on the stuff. The lazy growers key to success.
Nevertheless, I am definitely about 10 degrees higher than I want to be and do hit 90 at times. I guess its not recommended to use OC+ in high temp situations but it's been working out for me so far:
