# Memory and Classification for 18S

**URL:** https://forum.qiime2.org/t/memory-and-classification-for-18s/13810
**Category:** Silva
**Tags:** feature-classifier, its, silva
**Created:** [February 28, 2020, 12:37pm UTC](https://forum.qiime2.org/t/memory-and-classification-for-18s/13810 "2020-02-28T12:37:46Z")
**Posts on this page:** 1
**Showing post:** 4

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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: [February 28, 2020, 2:04pm UTC](https://forum.qiime2.org/t/memory-and-classification-for-18s/13810/4 "2020-02-28T14:04:09Z")

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Hi @fhermanto96, Have you tried try one of the newer SILVA 138 classifiers here:

> [@SILVA 138 Classifiers](https://forum.qiime2.org/t/silva-138-classifiers/13131):
>
> This pipeline has been vastly improved via the new RESCRIPt plugin. Which you can check out via the link below. We hope the process of constructing your own reference sequence database (e.g. SILVA) will be far less onerous. building_constructionplay_button Click here to see the original documentation

They should have a smaller memory footprint... especially the versions of the classifiers which were made without the species label (only goes down to genus).

-Mike

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