Our lab technicians have not tested anti-IL-31R alpha antibody A05256 on zebrafish. You can run a BLAST between zebrafish and the immunogen sequence of anti-IL-31R alpha antibody A05256 to see if they may cross-react. If the sequence homology is close, then you can perform a pilot test. Keep in mind that since we have not validated zebrafish samples, this use of the antibody is not covered by our guarantee. However we have an innovator award program that if you test this antibody and show it works in zebrafish thoracic aorta in WB, you can get your next antibody for free.