From your experiments, you conclude that the mosquitofish are already consuming too much oxygen from the pond. Any added goldfish are suffocating You have estimated that the Elodea currently in your pond produce 22.8 ml of oxygen per hour. A 2 gram goldfish will need 6.2 mL oxygen per hour. A small 0.5 gram mosquitofish will need 2.2 mL of oxygen per hour. Determine how many mosquitofish and goldfish the pond can support

Atp is is our little "pocket" of energy. of course, if you have too little, then it means you have too little energy, and you'll pass out. the way to not have enough, is to have no energy sources (glucose, fats, proteins). you can't have too many atp molecules. cycles like the krebs cycle produce it, but if you have too much of any substrate (or too little for that matter), the cycle stops and atp is no longer made (it stops until substrate levels are such that the process can go on). in any case, this is unlikely since atp is constantly hydrolyzed and remade, even while you're asleep. you won't have too much. if you have zero, you are dead or dying.