How Do I Grow My Fish Big

I’ve really wanted to have a tank of monster fish. Now I want to know how to have a monster

 

Whats the size of the tank?

Depending on the fish, it's mostly protein and clean water.

 

20 gallons

Also I wanted to grow my golden wonder killifish to a foot

Is that possible

 

Whats you definition of monster fish? 20 gallon isn't going to cut it if you want a monster fish.

 

From half an inch or more

 

Also I wanted to grow my golden wonder killifish to a foot

No, that’s impossible.

 

Also I wanted to grow my golden wonder killifish to a foot

You be lucky if it got to 4".

 

I’ve really wanted to have a tank of monster fish. Now I want to know how to have a monster

If this is what you have in mind, I beg you...
Please don't do it !!!

 

It all depends on the fish you are trying to keep in the tank

Also killifish do not grow to a foot

 

Can a goldfish

 

Don't keep a goldfish in a 20 gallon.