Wow massive brain explode.If your system was 100% dry and you added no ammonia, no bottle bac, no feed, and you merely put reef water in it, by contact alone that would fully cycle the reef here’s a work thread showing the test
Cycled 100% new dry tank off one connecting pipe in/out to an existing reef, twenty days to a contact-only cycle. No extra feeding added to main, it’s a literal transfer of shedded mass. Bristleworms somehow rode into the new system as well (when benthic organisms establish that is always tied with cycling, they don’t establish in uncycled systems)
This test reinforces the common cycling chart as to what cycles do when non boosted by bottle bac and feed
your tank is getting bacteria from three manmade sources and twelve home contamination sources heh nice comboConnecting Established Reef To New Tank
In conclusion, if using the method I did - connecting an established reef to a new system with dry rock (clean), I recommend the following: 1. Dose your new tank prior to connecting to your old tank with NO3 and PO4 enough to raise to your established tank levels. 2. Take your skimmer and...www.reef2reef.com
if polled before seeing that thread, respondents would say reef water has no bacteria it’s all on surfaces. it’s both.