SV: Tank Lid ventilation

[Gunvor Roslind]

>I bought a piece of plexi glass for the top of the new tank I had given to me. I need 
>to drill holes in it for ventilation any suggestions on hole size and how many? The 
>piece of plexi is 1x3ft. I plan on putting Clifford and his 4 boys in this tank when 
>they are old enough, I'll put Spikey and her daughter in a 20 gallon. Any suggestions?
>
>Thanks!

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I 'm not sure if plexi glass will give enough ventilation, even if you drill holes in 
it.

/Gunvor