worked great for me. i had it on my planted 55g and it went from pea green to crystal clear in about 4 days. i sold it after i tore the tank down, but it does what its supposed to do
i forgot to mention that this 24watt is rated for 90-100 gallons you would need to clean the sponge everyday for a 90-100 gallon tank. my 75 clogs it in 4 days.
worked great for me. i had it on my planted 55g and it went from pea green to crystal clear in about 4 days. i sold it after i tore the tank down, but it does what its supposed to do