Quote:
Originally Posted by PorkchopExpress
both...i first used UV when i had an AIO 34 gallon tank, removed half the sand, 3 day blackout, and UV
i then moved, upgraded to a 70g with new 2" sandbed, same rocks, fish, and corals and got another bloom...UV alone didn't stop that from happening even with a brand new bulb...i had to do 3 day blackout, UV, and dirty...haven't seen dinos since
it's absolutely possible they evolved or i got a new strain of dinos not as susceptible to UV the second time around or the sandbed was a huge contributing factor
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i doubt unicellular eukaryotes can evolve to not get killed by UV light of that intensity let alone so fast, I think it might have been the sandbed
UV should be coming today im anxious to start this blackout...