Help! Asap!

[kissedbylove]

I have 30 gallon tank with 5 corry cats and mollies and guppies...the problem is everything but the cats are dying off everyday i have 2 or 3 less fish..they seem to be gasping for air sinking to the bottom and look dead but also look like they cant get air

 

[dthoffsett]

I'm sorry to hear you are having problems, there are several things that can cause fish to gasp at the surface and die. If you could fill out as much of the following information as possible, we'd be able to help you better.

Tank size:
pH:
ammonia:
nitrite:
nitrate:
kH:
gH:
tank temp:

How long the tank has been set up:

Method of cycling (if new tank):

Fish Symptoms (include full description including lesion, color, location, fish behavior):

Volume and Frequency of water changes:

Chemical Additives or Media in your tank:

Tank inhabitants:

Recent additions to your tank (living or decoration):

Exposure to chemicals:

Digital photo (include if possible):

 

[WILDER]

Immediate water change and increase aeration in the tank.
What are your water stats in ammonia, nitrite, nitrate, and ph.