Hellow everyone! I would like some inputs. I have had a planted aquarium with DIY CO2 for 3 years. The CO2 lines from the bottles are connected to a check vale and dissolved using a Magnum 350. This is works great for the plants but not for some of my larger fish. I notice that in the mornings my fish are gasping for air at the top. An air stone was added and set to come on at night and certain intervals during the day to keep the fish happy. Is there a better method to keep both the plants and fish happy?