i just bought a few of these water globes and it says it waters the plant for you. just wondering if these things work? i put my plant food mixture in it. below ill have a few pics, look at the one with the spots on it. and now it has new growth which is perfectly fine. do you think i fixed the problem. i put plastic bags over the buckets to prevent most water from gettin in, except for whats in the globes. will this work?