Any time, always glad to help.

A phos reactor is a very simple peice of equipment. Just has a name that makes you think it should have blinking lights and steam involved. Whenever I want to sound smart at work when talking to non reefers, I bring up phos reactors and granular feric oxide.

There are many brands out there. Check out the 2 little fishies reactor, and you will understand how little there is to them.

They can be used on any size tank, just smaller tanks will need to be filled with less po4 media than a larger tank.

Good luck with the algea, and test your store baught water, just in case.