don't forget amazon rental, it works exactly like this
order 300xx sterilizer, install it on a perfectly clean system, blackout for 3 days and send the unit back less 15% stocking fee (check your seller) within a month. The reason I have no problem recommending amarental is because the neotherm I just got from them was open, someone elses weekend rental, and it works fine lol. play the game. if it works fantastic, you'll keep, heart of the amarental program. whatever you buy, do not buy the correct sized model for your tank. buy the largest most expensive one you are willing to use to win, if that means taking a chance on it not being strong enough and using a correctly sized model, then give it a try and you have a smaller chance of it working. Use a pond sterilizer if you want to win and not play around, it will be bulky but temporary, this doesn't have to be ran constantly its to win something
remove target from a tank via zapping, then go back to normal workings is the heart of using UV as a tool for pelagic invaders.