Freshwater fish (tilapia, catfish, trout, carp): HMTc Standard — page updateshttps://heavymetalcertified.com/standards/fish-freshwaterPublished revisions of this Heavy Metal Certified page.Freshwater fish (tilapia, catfish, trout, carp): HMTc Standardhttps://heavymetalcertified.com/standards/fish-freshwaterhttps://heavymetalcertified.com/standards/fish-freshwater#revision-5a1a71d68ba71993Sun, 20 Sep 2026 07:39:04 GMTThe Heavy Metal Tested & Certified standard for freshwater finfish, tilapia, catfish, trout, carp, stated as consumed. Trout is in the lower-mercury government group, which binds the subcategory mercury ceiling; every limit is the strictest maximum level any credible government sets for the product.