HIYA HERE ARE SOME FISH ME AND MY OTHER HALF HAVE AGREED ON THANKS FOR ALL THE HELP !
1) BLACK WIDOW TETRA
2)SILVER PROCHILDUS
3)RED ZEBRA
4)FIGURE 8 PUFFER
5)INDIAN MUD SKIPPER
6)SILVER SCAT
ALSO I WOULD LIKE HELP ON IF THESE FISH WOULD BE OK TO ALL HAVE TOGETHER IN THE SAME TANK && WHAT OTHER FISH AE GOOD TO HAVE N LOOK THE PART, NEED CHOICES ON WHAT IS THE BEST SAND OTO GET OR GRAVEL WHICH IS BETTER
NEED CHOICES ON WHAT ROCK OR CORAL IF POSSIBLE I COULD HAVE IN THERE??? THANK YOU FOR HELP IS WELL APPRECIATED
Hi again!
1) Black widows would be fine

you'd want at least 6 and the more you have, the better they will look and the happier they will be. How about 10-15 of them?
2) Silver prochilodus - these guys get to about a foot long (maybe just under) and need really long tanks because they are fairly active. IMO, they are not suitable for your tank.
3) Red zebra - these cichlids are aggressive and terriatorial. They really need larger tanks with other aggressive tank mates (such as other Malawi cichlids)
4) Figure 8 puffer - lovely fish but need species own tanks. They can do real damage to fish much larger than themselves with those beaks!
5) Indian mud skipper - require very specialist tanks with sandy/muddy beach areas. They are also pretty terriatorial. Unless you want a highly specialised tank with just a couple of mud skippers then this isn't a good idea.
6) Silver scat - these are brackish fish (meaning they need salty water) and they get to well over a foot long. Far too big.
When you are looking at fish bare in mind how big your tank is. Unless you want to specialise in a specific species or type of fish, then you'll be looking at a community tank. In that case, you'll probably be looking at these kinds of fish:
small bottom feeders - max size 2-3 inches each
small plec - max about 6 or 7 inches
small shoaling fish - max size 2-3 inches
Larger fish - max size about 5 inches
On a crude estimate you have about 30-35 inches of adult fish to play with.
Read this for stocking advice.