hey my fishing is 87..would the fishing guild be best place to make cash? or monkfish at fishing colony?

Monkfish.

Monkfish are better cash, but Sharks make more if that's what you mean by fishing at the guild.

i mean as far as cash per hour and stuff like that, the quickest cash

Monkfish.

monkfish have the best exp per hour: money per hour ratio

last I checked :

 

 

 

Sharks are 12k xp per hour and 115k cash per hour

 

Monkfish are 35k xp per hour and 105k cash per hour

 

 

 

Suggest you do monkfish even though you are looking for better cash, the faster xp will make you level faster and in the end you will achieve better cash per hour rates.

Both of them are very slow for cash. Monkfish are more efficient, though.