I am running Mira contig assembler on a iontorrent sequenced bacteriophage fastq file. The total number of reads in the fastq file is about 1800000; the average read length in the fastq file is 300, and the reference genome is unknown. To run the program efficiently, I have divided the fastq files into chunks of reads like "fastq1.fastq: has 10000 reads" etc. At present, among the fastq files I generated from the main fastq file, I am experimenting how many reads fastq file will give a better resultant contig. Ideally the best result should be just 1 contig. Could you please tell me how many reads I should run (given the information I have as aforementioned) to get the best resultant contig? Thanks much!