[Subsea]

I say fallow tank advice is useless.

I remember one line in Jurassic Park, when the scientist realize that the clones they had manipulated were now reproducing, “Nature finds a way”. I say the same applies to this fallow tank advice.

I personally think it is a dormant cocoon in substrate. A classic illustration of this has been documented with bacteria. Red Sea salt has natural sea salt as part of its make-up. When Ken Felderman was testing bacteria responses to carbon dosing in reef tanks, he found some unusual bacteria populations with the tank in question having Red Sea salt. When I posted this, I was blasted by unbelievers because a PHD chemist on this website said it could not happen. In the last two years, salt crystals identified as > 200 million years shocked the scientific community with a bacteria that they could not identify.