1- If it is and has a good hood on the tank it shouldent be a problem, I don't think that they you chemicals that can vaporize in the air, I think its just like one of those super wet vacs they use. Plus if it were to vaporize in the air, it would probably get stopped on your hood. if you're that worried about it you can probably also cover the top with saran wrap.
2- what size is your tank because if its atleast a 29u.s. gallon tank, filled with water and gravel ... it gets really heavy.
3- I don't think those new green cleaners are any better for your fish than the regular cleaner. It might be less toxic but its probably still not good at all for the sake of your fish.
Last edited by hvc801; 03-26-2008 at 08:34 PM.
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