Is fish or fishes?

Today only I know that 'fish' is also the plural for fish, but the word 'fishes' exists too, so what's the different?

The term 'fish' is used to refer singular or plural for 1 type of fish
The term 'fishes' is used to refer plural for more than 1 species of fish.

Examples:

1. A school of fish. (plural)

2. Fishes in the sea. (plural)

3. If the aquarium has only 1 type of fish, regardless of the quantity, we would say:
    "Look at the fish in the aquarium!" (plural/singular)

4. If the aquarium has more than 1 type of fish, we would say:
    "Look at the fishes in the aquarium!" (plural)

Lots of and loads of

I have did some surfing on the internet to find the difference betwen lot and load, and most of them agreed on the following:


"lots of" is synonymous with "loads of"
usually "loads of" will be used informally

if you want to just use 'lot' or 'load', you'll need to add 'a' in front of it, "a lot of" "a load of"

Examples:
A lot of flowers, a load of flowers, lots of flowers, loads of flowers.