I bought 4 guppies from my local petsmart about 3 weeks ago. So far I've lost 2. One was last weekend, the other this weekend.
I know that it's not me. The paramaters are good, water changes are regular; I take care of my tanks.
I got them at petsmart instead of my regular
lfs because they were much cheaper and now I'm paying the price for it (in the two years I've bought from my
lfs, I've only lost 2 fish). I've never lost so many fish so quickly before. They don't look sick at all, I just come home from work and find one at the bottom.
It just sucks when I'm doing everything right and I'm still experiencing casualties...