#1 & #2 should be taileyed goby (Parachaeturichthys polynema) in the family gobiidae. Its information can be found here:
http://www.fishbase.org/Summary/ ... peciesname=polynema
#5 is absolutely an anchovey in the family Engraulidae but species is unknown unless you can get the real one back.
http://www.fishbase.org/Summary/FamilySummary.cfm?ID=454
#3 & #4 is the most difficult...can't see the oral part well, but the best guess would be Sciaenidae.
Link here:
http://www.fishbase.org/Summary/FamilySummary.cfm?ID=331
This's all that I can say...
