Worked a 9 hr day, came home to a Sterbai acting 'funny' but not in the good way, Nitrates higher than normal ( could ve been 10, 20 or higher, anyone else have trouble reading that stupid API chart?). Did a 3/4 tank water change, fixed the plants that have been bugging me, fixed the airstone that had worked it s way to above the gravel again, put the cover on, put the lights back on, closed the cover. Was doing dishes & noticed the air hose from the air stone had come off of the airstone & was flopping all over, removed the cover, lights & top, reached in & reattached it . Waiting to retest the Nitrates. You know, just a normal 'I have an aquarium' type of day .