From readme.txt ;
From changelog.txt ;This is a fork from andythenorth's FISH NewGRF. It was created to adjust ship capacities in order to allow ships to seriously compete with other modes of transportation. Cargo capacities of most freighters are quadrupled and have their running costs and buy costs adjusted accordingly.
Changed ships;
Whitgift Freight Barge
Saint Marie Barge Tug
Geneva Freight Barge
Pine Island Log Tug
Meteor Freighter
Little Cumbrea Freighter
Shark Island Livestock Ship
Marstein Freighter
Altamira Freighter
Eddystone Tanker
Dieze Container Barge
Cadiz Freighter
Constance Freight Barge
Nieuwpoort Freighter
Hopetown Tanker
Frisco Bay Freighter
Grindavik Reefer
Santorini Freighter
Maspalomos Freighter
Ships and examples of adjusted capacity (redFISH 0.2);Changelog
=========
-------
Version 0.4
-------
Introduced 3 new ships;
Finisterre Freighter
Grizenesse Freighter
Harbour Point Trawler
Semi-fixed the Dieze Freight Barge buy menu alignment
Geneva Freight Barge graphics updated to reflect capacity
Balanced buy costs for Constance Freight Barge and Geneva Freight Barge
Updated translations
Changed the Fish Land Trawler introduction date to 1880 from 1870
-------
Version 0.3
-------
Fixed freighter running costs to match cargo capacity, buy cost increased, speed balance for log rug, cargo capacity fixes on five ships.
Running Cost increased four fold;
Whitgift Freight Barge
Saint Marie Barge Tug
Geneva Freight Barge
Pine Island Log Tug
Meteor Freighter
Little Cumbrea Frreighter
Shark Island Livestock Ship
Marstein Freighter
Altamira Freighter
Eddystone Tanker
Dieze Container Barge
Cadiz Freighter
Constance Freight Barge
Nieuwpoort Freighter
Hopetown Tanker
Frisco Bay Freighter
Grindavik Reefer
Santorini Freighter
Maspalomos Freighter
Yokohama Tanker
Speed increase;
Pine Island Log Tug (12 to 13)
Cargo capacity increase (to match other freighters);
Geneva Freight Barge
Whitgift Freight Barge
Cargo capacity decrease (to original);
Castle Point Steamer
Patos Island Ferry
Capo Sandalo Ferry
-------
Version 0.2
-------
Fixed freight cargo capacity to match description
-------
Version 0.1
-------
First release for testing


Download
Version 0.2 has been uploaded to BaNaNaS on 2014/7/27
Version 0.3 has been uploaded to BaNaNaS on 2014/7/29
Version 0.4 has been uploaded to BaNaNaS on 2014/8/1
Development
A development thread hasn't been posted yet.
The project's page can be found here.
You can leave your feedback here as a reply.
You can report bugs/issues here.
Credits
Nearly all the work has been done by andythenorth et al, that's where redFISH is forked from.
Thanks to planetmaker for helping me out in getting to learn the process and setting me up!