I shut off my filter yesterday afternoon to feed my discus and forgot to plug it back in. About an hour later I looked at my tank and some of my plants were bubbling a lot. I have a non co2 tank and this does not happen when the filter is on. I remembered when I was purchasing my plants 30 days ago the guy recommended I shut the filter off for two hours after 6 hours of lighting. He said he wanted the plants to remove all the co2 before the filter restarted. I'm using non co2 EI with very good results so far. Does this sound like a good strategy?