Adult zebrafish are a well-established model for studying heart regeneration. Due to their opaque tissue repair has been primarily assessed using destructive histology, precluding repeated investigations of the same animal. Scientists have now found a high-resolution, non-invasive in vivo magnetic resonance imaging (MRI) method incorporating a miniature respiratory and anaesthetic perfusion set-up for live adult zebrafish, allowing for visualization of scar formation and heart regeneration in the same animal over time.
In their set-up they used the Bartels mp6 micro pump! You can see it in the figure (a) below.
Have an in depth read through this interesting report here.
photos: Zebrafish: Wellcome Trust Sanger Institute