Girl in my area has been in contact with me, She had algae in her aquarium so she added Tetra Algae control , within a day or two she lost 28 guppies from babies to adults today lost 2 kribensis. I had told her yesterday to do a water change she had removed the filters so me and another guy told her to put those back, she has a couple of kribs , couple small angels and a abn, what more can I tell her ???