HI everyone
sorry for not adding the ph etc - the boyfriend looks after the tanks (we have 2, sometimes 3) and the issue is in the big tank the 350 litre with lots of tropical fish - nothing new introduced for gees over a year now. everyone in the tank seems quite happy - too many bristelnose but we cull regularly and its probably getting that time again.
We have a pair of pearl gourami - maybe a year ago we bought the boy and girl, and for the last week the girl has been sinking to the bottom - literally like her bum is sinking. every now and then the boy goes to her and stirs her up and she can swim up to the surface, but her back end is still low in the water, and shes spending most of her time on the bottom in the plants. I dont want to lose her - can she be saved

Nothing new has been introduced into the tank, we always change the water and everything else is fine, im just crushed I'll lose my girl and they made a nice pair
