Phosphates?

[Soccerdude]

So I finally got my tank to stabilize when I made the worst mistake of topping off for about two days with the wrong water..... I usually buy distilled but this time accidentally bought purified which supposedly can spike phosphates. This spike has caused cyano to take off.... Are there any good phosphate reducers you recommend??

 

[Rmonson]

GFO from bulkreefsupply.com

 

[crister13]

Really gfo from anywhere run in a reactor. It won't take it out but will bind it up to itself. You need to replace it about every month. Or if you're looking for something else you could set up a refugium or algae turf scrubber. Scrubbers are amazing. Really.