?sick guppy

[mrswoman2000]

One of the female guppies is acting strange. She appears slightly arched and at times she slowly drifts towards bottom of the tank and then just starts swimming normally (still arched though). She is still feeding normally. Doesn't appear to be any bulling from other fish. Anyone got any ideas as to what it might be? The other fish are fine.

Tank 13gl/uk.
6 guppies( 2 male, 4 female).
2 platys
2 honey red gouramis
1 loach
6 neon tetras.

Water chem
Ph 7.0
Ammonia 0
NitrItes 0
NitrAtes 5ppm.

Lynn

 

[!guppy!]

pregnant maybe??? has it got black gravi spot near anal fin? mine are pregnant and sometimes do what your saying

 

[mrswoman2000]

I think it has a gravid spot and it does appear slightly larger than other guppies. In fact i would the spot has grown and spread (if thats poss). If she is pregnant is there a more likely time she would give birth, such as at night etc?

Lynn