sweeTang21;2222503; said:that looks like less then 20 lbs even. understanding your tank is taller but still looks like a lot less. anways id suggest geting around 40 total lbs, this will add for a better look and i think you'll like it more.
i agree with the first part, it stil looks like less, i have a 10 with what looks like more than that, but it's 14 pounds
but the 40 pounds part i think is overkill, it'd displace too much water and wouldn't leave enough space for swimming