1. Go to the NCBI nuccore database, at [https://www.ncbi.nlm.nih.gov/nuccore][1] Copy and paste the search term: `(bacterial virus[Organism]) AND (3000:110000[sequence length]) NOT bacteria[Organism]` You'll get 74583 results. 2. Click on the link `send to` and click the check box `file` It will then download. 3. Check the file is in `fasta format` with ">" to start the ID. 4. If fasta format is absent return to the webpage and where it states `summary` switch that to `fasta text` I can't remember if point 4 is needed. **Notes** Seqence length, I'm guess all phages are between 3000 to 105 000 in length, this is to screen out partial sequences and to minimise bacteria creeping in to the search. I don't quite understand how a phage can be 105 000bp in length, but you can twiddle these parameters to refine the search. [1]: https://www.ncbi.nlm.nih.gov/nuccore