HELP! this is my 15 L tank that used to house 6 guppies but only has 2 now. Over the last week and a bit I've lost 4 guppies and I can't figure out why. I do water exchange weekly as well as filter cleaning, I have a heater, foliage and a light. I feed them pellets and flakes. Please help!2yr ⋅ Mr-Buzinezz ⋅ r/Guppies
