# Import merged fastq files via manifest

**URL:** https://forum.qiime2.org/t/import-merged-fastq-files-via-manifest/2930
**Category:** User Support
**Tags:** import
**Created:** [February 7, 2018, 5:20pm UTC](https://forum.qiime2.org/t/import-merged-fastq-files-via-manifest/2930 "2018-02-07T17:20:02Z")
**Posts on this page:** 1
**Showing post:** 2

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### Author: ![Mehrbod\_Estaki](https://forum.qiime2.org/user_avatar/forum.qiime2.org/mehrbod_estaki/32/4001_2.png) [@Mehrbod\_Estaki](https://forum.qiime2.org/u/Mehrbod_Estaki)
#### Post date: [February 7, 2018, 6:37pm UTC](https://forum.qiime2.org/t/import-merged-fastq-files-via-manifest/2930/2 "2018-02-07T18:37:54Z")

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Hi @arwqiime,  
If you are planning on using dada2 in qiime2 it is better to import your reads unjoined as dada2 performs denoising on individual reads and then merges them. See this [thread](https://forum.qiime2.org/t/import-demultiplexed-joined-reads-r1-r2-joined/1356/3) where a similar question was discussed.  
If your plan is to use another method such as vsearch, I think this [tutorial](https://forum.qiime2.org/t/analyzing-paired-end-reads-in-qiime-2/2021/1) can help with your importing questions. Specific to your question, see the

> Importing pre-joined reads

section.

Hope that helps!

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