# SILVA 138.2 ssu-nr99 database, only 6 levels

**URL:** https://forum.qiime2.org/t/silva-138-2-ssu-nr99-database-only-6-levels/31163
**Category:** Technical Support
**Tags:** taxonomy
**Created:** [August 16, 2024, 2:42pm UTC](https://forum.qiime2.org/t/silva-138-2-ssu-nr99-database-only-6-levels/31163 "2024-08-16T14:42:51Z")
**Posts on this page:** 1
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### Author: ![SoilRotifer](https://forum.qiime2.org/user_avatar/forum.qiime2.org/soilrotifer/32/21071_2.png) [@SoilRotifer](https://forum.qiime2.org/u/SoilRotifer)
#### Post date: [August 16, 2024, 2:57pm UTC](https://forum.qiime2.org/t/silva-138-2-ssu-nr99-database-only-6-levels/31163/2 "2024-08-16T14:57:13Z")

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Hi @feixiang1209,

SILVA does not curate species level taxonomy. Moving forward we will, honor their intent, and likely no longer include the organism names as the species labels by default, for reasons outlined [here](https://forum.qiime2.org/t/processing-filtering-and-evaluating-the-silva-database-and-other-reference-sequence-data-with-rescript/15494#heading--second-header), under the "Species-labels: caveat emptor!" drop menu.

You can certainly do this your self by using the `--include-species-labels` flag during download. Otherwise to make your plots, just set your rank depth as follows:

```auto
qiime taxa collapse --p-level 6 ...

```

Remember if something ever goes wrong always check out the help text first by adding `--help` to the command. 🙂

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