To be honest the light hours are a bit random over time , but if its mostly late flower clones in the bubbler i move it into the floweroom , and into the veg area if mostly from plants still vegging under 20/4.
Anecdotally , have had more luck with late flower clones if they root fast in 12/12 and then start a reveg after , esp males which often have a death wish cloned late.
After a month they all look the same whichever way.
Haveing good results useing just sea salt at 2g/litre , seawater is a nominal 35g/litre so its not that strong , expected a disaster but got masses of callous and a root explosion on some particularly old gnarly cuts off a year old mother and some standard stuff , better han plain water in comparison , but does not suit smaller cuts as well.
Anecdotally , have had more luck with late flower clones if they root fast in 12/12 and then start a reveg after , esp males which often have a death wish cloned late.
After a month they all look the same whichever way.
Haveing good results useing just sea salt at 2g/litre , seawater is a nominal 35g/litre so its not that strong , expected a disaster but got masses of callous and a root explosion on some particularly old gnarly cuts off a year old mother and some standard stuff , better han plain water in comparison , but does not suit smaller cuts as well.