How much does a 75 gallon fish tank weigh with water?
Then there is the weight of the tank/stand. I believe a standard 180 weighs approx 350 lbs. You are looking at around 2100-2200 lbs after all is said and done. How many fish can you fit in a 100 gallon tank? One of the most important factors that comes into keeping fish in tanks or ponds is how many fish you can get away with keeping in one system.