ok i dont have a test kit for phosphates.but i had bought the TLF phosban reactor.since using it a have seened growth in some zoos that only had 9 polyps for the better part of 4 months.also my gsp have shown lots of growth.now i know that these tend to grow fast anyway,but in my tapwater 29 gal nothing seem to grow but hair algae.anyway since the start of my 90 which is ro,and a better skimmer there has been no algae growth.so could the phosban reactor spurred a sudden growth spurt?