Activated carbon and algae issue

jcmjoe

New member
Have any of you guys ever had an issue with certain brands of carbons possibly leaching phosphates or anything undesirable into your tank. I had a sudden brown algae bloom over my sand bed and the only change I did was swap out some Phosguard for some carbon in my reactor? It was a new bag of the fluval / aquaclear that I put in. Just curious, Im not showing a huge spike in my test but thought I read in the past that some of the cheaper carbons can do that.

Thanks!
 
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