I would sugest using a cooler there much stronger than the plastic totes,and once you fill it up you will see what I mean,as far as a filter goes theres lots of options out there,the gravity filter is the best bang for the buck when it comes to larger tanks and theres lots of info here to help you out,just remember one thing you need to turn your water over at least 5 times an hour,so say you have a ten gal. tank you will need a filter that will filter 50 gal per hour,and it doesnt hurt to go above that either I have a 120 gal fish tank in my house that turns the water over 12 times an hour with all the filtration I have in it and my water stays crystal clear and I only have to clean my filters every 6 months or so,Iv had some of my fish for many many years,when they do die witch isnt often its from old age