I have two questions, not particularly the same topic but i didnt want to make 2 seperate threads. I have just currently setup a DIY co2 thing. Now im sure ive read somewhere before that with pressurized co2 you cannot have the surface of the water moving because the co2 escapes, does this apply for my setup? has the surface got to be completely still, what about when my powerhead is on, with the aeration attacthment, does that make a difference? And secondly, i have a piece of bogwood, and yesterday i attached some Golden Nana to it, as i left it out for a bit whlst waiting for the glue to dry, i went downstairs to have a beer and some BBQ , however i completely forgot about it being left out, it must have been about 2-3 hours, the window was open too, the leaves of the plants were bone dry and shrivelled? I put it back in the tank straight away, it doesnt look the best. Will it revive or will the leaves just die off and new ones grow? is the plant stil alive? Again apologies for posting 2 seperate questions. Any help very much appreciated.