[The Dude]

My female swordtail passed today. Yesterday she was fine and today she was extremely pale and dead. There was no physical damage (bites, etc) but shes dead. the water perameters are fine, I actually didawater change about 4 days ago. She may have been just begining pregnancy. Should I worry for anyone else (especially my other female swordtail)?

 

[The Dude]

ammonia, nitrite, nitrate, and pH shouldnt be a problem because i did a 20% waterchange 4 days ago the temp hovers around 78 or 80f all my info is in the my tanks thing.

 

[The Dude]

i do water changes every 3 weeks. i went to my lfs and they said that the parameers were fine

 

[The Dude]

First off, I would have to defend my LFS, as these guys are a mom and pop operation that we have bought all our pet supplies from for years, way before i got into fish. They really do know thier stuff. Im sure they wont mind jotting down the parameters next time i got in. my LFS said its fine, but other times i go in to have it tested he will say something like "the nitrates are a little high, but not dangerous yet, do a water change within a few days." I have 2 undergravel filters and a penguin 200 filter with biowheel, the filtration is more than ample. fish are relatively diverse: 4 Serpae Tetras 1 Common Pleco 2 Emerald-Green Corys 2 Swordtails (red male and a black female) 1 Blue Dwarf Guarami 1 Ropefish and 1 African Butterflyfish (i realize i may be a tad overstocked but the butterflyfish, ropefish and placo are still small so i will either get a bigger tank as they grow or find new homes for them) i feed once or twice a day, always flake food or bloodworms with the occaisional baby brine treat. temp is 78-79 and i have a 20 gallon Long.