Need help to identify fish

[ChromiumX]

What is the name of the fish in yellow? Can bala shark be kept with those fish?

[allblacks]

Looks like mollies to me...

[allblacks]

http://www.balashark.info/bala_shark_care.htm

You may want to have a read at this first before getting the bala sharks.

[Nic88]

looks like mollies and guppies =)

[ChromiumX]

i thought those were african prince cichlids, bala shark be kept with guppy?

[ChromiumX]

i just notice that the filter flowrate decrease by more than half, should i replace the filter media or just wash it??

[allblacks]

Wash filter media with aquarium water or dechlorinated water... Maybe your filter has been clogged up. However the brown stuff on the filter media should still remain abit as these are good bacteria that I read that helps to break down harmful substances in the water.

[ChromiumX]

i'am using the ocean free mini HOF, is that enough for my tank which is 30x20x20?

[allblacks]

Depends on the number of fish you have and frequency of feeding.

[mincedmeat]

Look like a platy to me though.