Dick wrote:

I would buy a tank with at least 20 gallons, better even larger. I
have 3 tens, one 29 and one 75. The ten gallon tanks are much harder
to enjoy and take as much work. The larger tanks can hold larger fish
and more fish. Some of my favorites such as the Clown Loach, Siamese
Algae Eaters and Plecos, don't do well in small tanks. Also pay
attention to the lighting. The hoods that come with the tanks usually
limit you to "low light" plants. For more varieties get a tank hood
that provides more than 3 watts per gallon. I have nothing but low
light tanks. While the plant selection is limited, those that I have
are doing well and have spread to fill the tank.

I agree, bigger tanks are easier to maintain to be honest!
I have a 63 and a 15, the 63 is much easier to look after (Especially
as I have no gravel in it)