Heres a thing, the cycle never stops in the tank unless you drop bleach in. So I dont like to call it a mini cycle(its exhibiting the signs of a new tank cycling yes). It starts and hopefully never ends, but it does get overwhelmed though, esp w overstocking and digging around, and my Talbot
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Yea its possible youll kick up some gunk and get some algae , but it depends on whats in the new tank side. And yea overstocking would possibly cause issues as the cycle biofilter catches up.
but if its just a frag tank with live sand and frags it should be fine.
Heating and cooling the system might be a challenge.
Hahah "Dirty scripps water", Im one some other boards and man we should count our blessings. Live sand from a bag and dirty scripps water you just drop a fish in. In iowa rodi red sea C P, new tank 3 months old, it gets ick. Thats what im seeing any way.