Thanks for the fishes☆

Please improve these sentences.

A few days ago, I met my friend. We have to been friends since when we were students at of university.
He lives in the next prefecture (over/from me) now, and then he came to work to Hiroahima that day/he came to Hiroahima for work that day.
He often invites me a for dinner when he comes to Hiroshima. We went to an izakaya this time.
This is Ikezukuri. There were rockfish, red rockfish, and squid on a big plate. These (sounds a bit technical)/They were swimming in ponds (I think the customary practice is to keep them in tanks [水槽], were they actually swimming in ponds [池]?) in front of us.
We had a fun time.
I want to say thanks for the fishes. You They were delicious☆ (Unless you want to say thanks to the fish ww, in which case-> 'I want to say thanks to the fish. You were delicious.')

Thanks for fishes☆

Please improve these sentences.

(A) few days ago, my friend came to visit me (Since you are not meeting for the first time). We have to been friends (since) we were students (at the/our) university.
He lives in (the) next prefecture now and he came to work at Hiroahima that day.
He often invite(s) me (over for) dinner when he come(s) to Hiroshima. We went (to) izakaya this time.
They serve Ikezukuri. There were rockfish, red rockfish, and squid on big plate. Others(?) were swimming in ponds in front of us.
We had a fun time.
I want to say thanks (to the) fish. You were delicious☆

I think I kept the intent of your story :

A few days ago, my friend came to visit me. We have to been friends since we were students at our university.
He lives in the next prefecture now and he came to work at Hiroahima that day.
He often invites me over for dinner when he comes to Hiroshima. We went to izakaya this time.
They serve Ikezukuri. There were rockfish, red rockfish, and squid on big plate. The other fish were swimming in ponds in front of us.
We had a fun time.
I want to say thanks to the fish. You were delicious☆