What is the best CO2 tank for my MR1?

Aquarium Co2 tank?

• i am having the hardest time fniding a 5lb co2 tank for my co2 system for my planted tank.it needs to connect to a Milwaukee MA957 regulator. i saw some on ebay but i have seen no stores online to compare those prices that i saw on ebay to. if any1 out there knows anywhere that i could get a 5lb co2 tank for a great price let me know plz. Can i get one from a welding company? i have an industrial park down the street from my house and there is like 20 welding places there.my other question is where to get a 5lb tank filled? can u go to ur local paintball store? its not a paintball tank but can they still fill it? if not where can i get it filled and how much is it to get it filled? thx alot for the help 10 pts to most helpful!!!

• Answer:

  Yes, you can get it from a welding company. Look up airgas I know it is in Illinois and it is in Massachusetts. You may want to go with a 10 lb cylinder because it is the same height as a five just fatter and it is about 20 dollars more and the fill up is about the same price. 5 lb cylinder is about 105 (comes filled) 10lb cylinder is about 125 (comes filled) each fill up after that is about 14 I only have to fill a 10lb for 125 gallon tank that is heavily planted tank about every nine months to a year