Jamesh,
If you intend to keep a damsel fish in brackish water,you best bet would be to go with the sergeant major damselfish Abudefduf saxatilis.They are very adaptable and are regularly encountered in euryhaline conditions! Another candidate would be the three spot damselfish,Dascyllus trimaculatus! Both species do very well in a wide range of conditions ranging from marine to brackish with NO signs of stress or ill health! Try and maintain your specific gravity at 1.0015.Also here's a link which specifies some truly euryhaline damselfish species.
http://homepage.mac.com/nmonks/Projects/FAQ/7e.html
Warm regards,
Javed Jameer Ahmed.
If you intend to keep a damsel fish in brackish water,you best bet would be to go with the sergeant major damselfish Abudefduf saxatilis.They are very adaptable and are regularly encountered in euryhaline conditions! Another candidate would be the three spot damselfish,Dascyllus trimaculatus! Both species do very well in a wide range of conditions ranging from marine to brackish with NO signs of stress or ill health! Try and maintain your specific gravity at 1.0015.Also here's a link which specifies some truly euryhaline damselfish species.
http://homepage.mac.com/nmonks/Projects/FAQ/7e.html
Warm regards,
Javed Jameer Ahmed.