Halacaridae (Turbellaria, Halacaridae, Tartigrada, Copepoda (Diacyclops, Bryocamptus), Cladocera (Alona, Ilyocryptus), Chironomidae (Mesocricotopus, Micropsectra), Cytheridea) is prey of:
Pentaneurini
Procladius
Protanypus

Based on studies in:
Finland (Lake or pond, Pelagic)

This list may not be complete but is based on published studies.