To set up the family trust, transfer the property and shares, change the mortgage and set up their gifting programme, the cost will be around $3,130, plus disbursements and other costs. The ongoing fees will be around $220 a year to cover the annual meeting and $150 a year to cover the gifting requirements.
Even at the same age, they vary a lot in length. They grow rapidly during the first year, but the growth rate varies a lot even for fish from the same spawn, so the size of year old goldfish varies widely. Almost all of the goldfish you see in the big box pet stores are well under a year in age.
In a proper 20 gallon tank where water perameters are closely adhered to a common goldfish can live into their 30's. The oldest common goldfish died at the age of 43! If you have the fish in less than ideal conditions, like a bowl or tiny tank, they usually don't live a month. Tiny tank is ANY tank under 10 gallons. 10 gallons would be a very small tank. A 55 gallon is a suitable home for 4 or 5 goldfish.