Hi , so I design, build and maintain reef tanks in Montreal. I've been in this hobby for 35 years. I basically no longer test organics but go with experience and visual cues to ajuster for that. I have heard in the past few years the idea of low N03/P04 is becoming no longer the ideal goal. Well U decided to check one of my best tanks out of curiosity. It measures N03 25ppm and P04 1.0 ppm using the salifert N03 and Hanna ULPhos.
I need to frag the SPS weekly and at the same time corals like hammer and Goniopora are growing great as well.
If I found things to get looking off, I would probably ajust to 15ppm N03 and 0.07 P04. But just goes to show we think we're sure of things for years even and turns out it's just a rumor.
A side note, I'm quite sure in this tank with big predators , without the chaeto fuge, plenty of turbo snails and 4 tangs algae would take over. So keep that in mind, it's a very important factor with these levels.
I need to frag the SPS weekly and at the same time corals like hammer and Goniopora are growing great as well.
If I found things to get looking off, I would probably ajust to 15ppm N03 and 0.07 P04. But just goes to show we think we're sure of things for years even and turns out it's just a rumor.
A side note, I'm quite sure in this tank with big predators , without the chaeto fuge, plenty of turbo snails and 4 tangs algae would take over. So keep that in mind, it's a very important factor with these levels.