<a href=showthread.php?s=&postid=8378777#post8378777 target=_blank>Originally posted</a> by grouper25
The UV wattage you have selected is way too low for a 220. Depending on flow rate, it may kill algae but never parasite which is what ICH is. Just look at the Aqua website for the efficacy of their products by wattage. I had a 25 watt and returned it for a 40 watt.