- Joined
- Jul 10, 2016
- Messages
- 31,515
- Reaction score
- 66,665
I am confuse. Earlier in the thread you like your po4 at .04 to .08. Now you said your po4 is now .30 which is a great spot. I am reading you wrong? Just trying do my best to follow and understand your recommendation po4 levels.
Hello sorry for the confusion and the testing is always a work in progress. This thread has morphed and now covering 2 system that we have. We have a 540 Gallon system which is the main system that has been running for over 3 years. This is the established system that we keep all our prized corals. This system i find the po4 optimal level is .08-.35PPM. i know this is a large range. we are using the hanna h1774 checker. typically my Target range has been .05-.08 but recently the po4 has gotten up to .40 and the corals seem unaffected. So now we say the range we like to see is .08-.35.. this is on the hanna checker h1774.
the second system is the new build 360 system. The po4 started at .90 and then we took it down to .30. once the po4 went under .40 the system started to consume a lot of alk. so for sure i know the corals like po4 under .40 and above .08. anything under .08 and my corals start to get the dry look.
I hope this was not too confusing the summary is that tenuis like po4 between .08 and .40 with the optimal level being between .20 and .30. at these optimal levels we see the most PE and most Alk consumption. I hope this helps!