My plants have been in a bubbleponics container for 12 days. I went to clean and put new water in and found algae on my air stones. I guess im letting in light but thought i had it sealed out . I think i can fix that and not get algae again . My plants look ok to me but i really don't know what to look for. Could i have problems im not aware of?? If so, is there anything i need to do for my plants? thanks for any help!!!