Drip Clean vs. FloraKleen vs. ATAClean

Which one do you guys use? What's the difference between them?

Thanks.

I use ata clean and drip clean. No difference between them. But found algae with ata clean that i can't see with drip clean. I use drip clean with up to 1 ml per gallon without issues. I really dont know why i use this products because found no difference use them or not. Just in case.