Can You Help My Tank!

[killerfish]

i just got 4 molly and 2 are prego!!! also my swordtail gave brith and eat the fry. i also have to other kinds of molly that are both pergo. but my tank is going hay wire!!! i also got to new young angels my friend had from his frist batch. my pacu (who just today left mt tank) turnd into MONSTERS THEY EAT EVERY TIGER BARB I HAD!!!!! then they eat a molly right in front of me. so there gone now. they also got one of my new angels . now my tank is murky and my fish are gasping for air but i put in a air stone and there doing betterbut one of my mollie had to be moved because she was faced head down in the garvel (WHATS UP WITH THAT?)

Thanks,
fishguy19

 

[Tetras]

Just to make it a little easier to answer:
Please write excactly whats left in your tank
Size of your tank and how long it has been running
Do you know the water stats?

Hopefully you will get some more replies if you could answer these questions.

Welcome to the Forum

 

[killerfish]

Just to make it a little easier to answer:
Please write excactly whats left in your tank
Size of your tank and how long it has been running
Do you know the water stats?

Hopefully you will get some more replies if you could answer these questions.

Welcome to the Forum

ok heres whats left in my tank: 3 swordtail, 3 angels, 4 black skrit tetra, 2 common pleco, 2 rainbow shark, 1 blue Gourami, 4 tiger barb, 2 electric blue johanni, 1 female electric blue johanni, 4 black molly, and 2 dalmatian molly.

my tank is a 40 gallon and has been running for 5-7 months.

my water stats are pH 7.6, hardness 120, Nitrate 0, Nitrite, 0.5, ammonia 0.

 

[WILDER]

The tank overstocked that why you have a nitrite reading.
I would rehome one of the sharks as you shouldnt be keeping two of them anyway can't tolerate there own species.
I would invest in another filter to run with the old one as the filter you have its not coping with the load of fish in the tank.
And i would suggest a water change to get that nitrite reading down.