importing split fastq file as qza

I have an Illumina MiSeq run for one sample that generated approximately 24 million reads. I'm trying to denoise using dada2, but it's been running for 17 days, using an average of 160 GB of RAM. I wanted to try my luck with chunking the qza file into smaller pieces to see if I could get any data that way. I exported to a fasta file and split it into two pieces. Then I reimported, but since it's a fasta file, when I run DADA2, I get the following error:
Plugin error from dada2:

Parameter 'demultiplexed_seqs' received an argument of type FeatureData[Sequence]. An argument of subtype SampleData[PairedEndSequencesWithQuality] is required.

So, I exported as a fastq file and split that file in half. But now I can't figure out how to import it back into a qza format. It's not paired end sequence like the previous error was looking for. It is a file containing one sample, and has both forward and reverse reads. In looking at the various format/type options in the tutorial, I am not sure which format this file now falls under. I am importing as type 'SampleData[SequencesWithQuality]'. Is that correct? But what should the format be? The fasta output is follows (so that you can see formatting). Thanks for your help.

M02019:219:000000000-CBDNB:1:1101:20514:1658
TCTGCCACAGTGTCACACTCTACCTTCCTCTGCCCCAGTGTCCCACTCTACCTTCCTCTG
CCCCATTGTCACACCCTCTCCCTTCCTCCCCCACTCTCTCCCCCCCCCCTCCTCCCTCTC
CCCCTCTCTCCCCCTCTCCCTTTTTCTCCCCCTCTCTCCCCCTCTTCCTTTCTCTCCCCC
TCTCTCCCCCCCTTCCCTCCCCTCCCTCCTTCTCCCCCCCTCCCTTCCTCTCCCCCCTTC
TCTCTCTCTCCCTTTCTCTCCCCCCTTTTCCCCCTCTTCCTTCCTCTTCCCCCTTCTCCC
C
M02019:219:000000000-CBDNB:1:1101:23205:1670
CACCATTACTTGTCGCATCATTATTTTCACCATCACCTGTAGCATCCTTATCTTCCCCAT
CCCCTCTACCCTCCTCATCTTCCCCCTCCCCTTTTCCCTCCTTCTCTTCCCCCTCCCCTC
TTCCTTCCTTTTCTTCCCCCTCCCCTTTTCCCTCCTTTTCTTCCCCCTCCCCTTTTCCCT
CCTTTTCTTCCCCCCCCCCTTTCTCCTCCTTTTCTTCCCCCTCCCCTCTCTCCTTCTTTT
CTTCCCCCTCCCCTTTCTCTTCCTTTTCTTCCCCCTCCCCCTTTCCCTCCCTTTCTTTCC
C
M02019:219:000000000-CBDNB:1:1101:16173:1672
ACCATCACTATTCACAACCATCACTACACACAACCTTCACTACACACAACCTTCACTACA
CACAACCATCACTACATACAACCATCACTACACACAACCATCACTACACCCCACTATCCC
TCCCCCCCACCTTCACTACCCCCTCCCCTCCCTACACCCTACCCTCTCCCCCCCCTACCT
TCACTACCCCCCCCCCTCCCTTCCCCCAACCTTCCCTACCCCCTCCCTTCCCTCCCCCCC
ACCTCCCCTCTTCCCCCCCCTCCCTCCCCCCCCCCTTCCCCCTCCACCTCCTTCTCTCTC
C
M02019:219:000000000-CBDNB:1:1101:21562:1672
ATGATGGTGCAGAGGTTGTTGACCAGTAATTACCCCATGATGGTGCAGCGGTTGTTTACC
AGTACTTACCCCCTTTTTTTTCCACTGTTTTTTCCCCACTCTTTCCCCCTCTTTTTTTCC
CTTTTTTTTTCTCCTTTTTTTCTCCTCTTTTTTTTCCTTCTTTTTTCTCCCTTTCTTCCC
CCCTTTTTTCTCCTTTTCTTTTTCCCCCTTCTTCCCCCCTTTTTTTTCCTCTTCTTTTCC
TCTTTTTTCCTCTTTTTTTTCCTTCTTTTTTTTTCTTCTTTTTCCCCCCTTTTTTTTCCT
C
M02019:219:000000000-CBDNB:1:1101:19837:1682
TCTCTCTCTCTGTCTCTCTGTCTCTCTCTTTCTCTCTCTCTGTCTCTCTCTCTCTCTCTC
TCTCTCTCTCTCTCTCTCTCTCTCTCTCTCTCTCTCTCTCTCTCTCTCTCTCTCTCTCTC
TCTCTCTCTCTCTCTCTCTCTCTCTCTCTCTCTCTCTCTCTCTCTCTCTCTCTCTCTCTC
TCTCTCTCTCTCTCTCTCTCTCTCTCTCTCTCTCTCTCTCTCTCCCTCTCTCTCTCTCTC
TCTCCTTCTCTCTCTCTCTCTTTCTCTCTCTCCCCCTCTCTCCCTTCTTTTCCCTCTTTC
T
M02019:219:000000000-CBDNB:1:1101:19297:1683
GGTGTTGTGATCCCTGACACATGGTGGTGCTGTATCCCTGACACATGTTTGTGCTGTTCT
CCCTTCCACATCTTGTTCCTTTCTTCCTTCCCCCTTTTTGTTCTTTTCTCCCTTCCCCTT
TTTTTTCCTTTTCCCCCTCCCCCTTTTTCTTCTTTTCTCCCTCCCCCCTTTCTTTTCTCT
TTCCCCTCCCCCTTTCTCTTCCTTTCTCCCCTCCCCTTTTCTTTCTCCTTCCCCTTTCCC
CTCTCTTTTTCTTCTCTCCTCCCCCCTTCTTTTTCCTCTTTCCCTTCCTCTCTTTTCTCC
C

Yes, unless if those sequences are actually paired-end reads. It sounds like these data should be imported as one of the fastq manifest formats.

Let us know if that works for you!

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