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Don't be too surprised if "the nasties" don't show up at all.
If you did the water changes and knocked the nitrates down, they may not come up.
You started with clean rock and clean sand plus a fishless cycle.
Combine that with no light and you might be good for no nasties.
If you did the water changes and knocked the nitrates down, they may not come up.
You started with clean rock and clean sand plus a fishless cycle.
Combine that with no light and you might be good for no nasties.