Please Help

[Thompson]

Hi guys

I have had my tank set up for a couple of years now, I have checked the water and there is no problems.

however Two mollys in the tank are unwell, there both swimming in the corner of the tank but swimming in a verticle position, one of them was lying on its side at the bottom of the tank this morning.

As when I set up the tank I inheritaed six fish but i am unaware of what they are (they bit like a silver shark however their silver with black tips on their tales and sholling fish)

One of these fish is swimming in the same corner as the mollys, it is not swimming with the rest and just hovers in one place, its mouth is constantly opening and shutting (not gasping for air or anything)

Can any one suggest what might be wrong?

 

[Squid]

Hi guys

I have had my tank set up for a couple of years now, I have checked the water and there is no problems.

however Two mollys in the tank are unwell, there both swimming in the corner of the tank but swimming in a verticle position, one of them was lying on its side at the bottom of the tank this morning.

As when I set up the tank I inheritaed six fish but i am unaware of what they are (they bit like a silver shark however their silver with black tips on their tales and sholling fish)

One of these fish is swimming in the same corner as the mollys, it is not swimming with the rest and just hovers in one place, its mouth is constantly opening and shutting (not gasping for air or anything)

Can any one suggest what might be wrong?

You checked ammonia, nitrite and nitrate levels? the first two being at 0 and the last below 40ppm?

Anything wlse about the fish changes, any marks, change in shape?

Squid

 

[Thompson]

yeah mate readings all ok, and no markings or anything which shows on the fish

 

[zoekin8yg]

sounds like a swim bladder problem

 

[Thompson]

hi

can u just expalin that for me as i have never heard of it?

 

[WILDER]

http/www.fishtanksandponds.info/care-mai...swimbladder.htm