I was looking into get this for my 20gallon. Do you need a glass top for this? as opposed to a regular stock hood i have on now?
https://www.aquatraders.com/index.asp?PageAction=VIEWPROD&ProdID=312
3.25WPG, CO2 Needed?
https://www.aquatraders.com/index.asp?PageAction=VIEWPROD&ProdID=312
3.25WPG, CO2 Needed?