http://forum.aqua-fish.net/ A forum devoted to aquarium fish, plants, techniques and fish keeping as a whole. en http://forum.aqua-fish.net/?topic=plzzzzzzzzzzzz-help#1 i need a help plzzzzzzzzzzzzzz, i brough many platties, guppies and mollies in my tank, but after 3 days may tank become empty, and only two molly and two platties remain, while my black molly give birth of 3 fry but unfortunately only 1 fry remain among them, my question is dat why my fishes died ??? all of them suffering from the same problem............ they move to the surface of water and take oxygen from there and after some time they become dead!!!! willlll u plzzzzzzzzzzzzzzzzzzzzzz help me out adeelssuet 2008-11-05 http://forum.aqua-fish.net/?topic=plzzzzzzzzzzzz-help#2 How big is your tank, how many fish did you have in there and is it cycled.It does seem that you have an oxygen problem, are you running an airline in the water mickey 2008-11-06 http://forum.aqua-fish.net/?topic=plzzzzzzzzzzzz-help#3 This can be also poisoning. Rare, but lethal.... jan 2008-11-16