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In theory anything that is airborn can get into the water via the gas exchange. I belive we have had a simular discussion in the past. If you search "paint + fumes" you might find some of those discusions.
I belive the overall consensius is to check your water a little more during the phase and take action if needed.
Check your basic water qualty tests like ammonia and nitrite. If you have a skimmer make sure its working at good effecency aswell. Covering the tank will help keep fumes out of the gas exchange but it will also limit the gas exchange aswell.
No worries - just noticed he's left his painting gear right next to my waterchange container and equipment (powerhead, salt, heater/pipes etc.) in the spare room!!
I guess with a rinse (as usual) these will all be ok?