Trying this one more time, 3rd time I'm trying to solve this over 2 years. I have had a 40b set up for 3 years, lit by 2 kessil a350w's (50% white 90% blue), 2 jebao pp8s for flow, and bubble magus skimmer, barebottom tank. This tank has never grown coral or coralline. I keep up with 15% weekly water changes, although I have tried going longer with bad effects. I even test sometimes daily. I cannot figure out what is wrong with this tank. I'm about to tear it down to start a new build, but I want to solve this problem before I move on to avoid the same problem in my new tank. I have about 10 sps frags from 1" frags to mini colonies, they all paled out within a few months of introduction, lost PE and most never grow a millimeter, some encrust a tiny bit and then halt. And all of these have been in for over a year. Even zoas get pale color, and only one frag of zoas grows maybe a new polyp a month, others not at all in over a year, some close to 2.
I use Ro/di with 0 tds, red sea blue bucket salt and parameters are alk 8.2, calcium 420, mg 1340, po4 .04, no3 10-20. All stay consistent with not much hassle, as my coral use NO elements. My alk will drop by maximum .1 in a day (8.2 to 8.1). I dose 3-7 ml 2 part every few days... Usually don't even need to dose anything but alk. I even sent in an icp to ATI and nothing popped up out of the ordinary, just slightly low iodine.
The tank only has 2 clownfish, but I get a decent amount of hair algae on my overflow and sporadic cyano blooms. I feed LRS reef frenzy 1x a day. Have tried acropower, reef roids etc with no improvement. Once in a while I will get a few specks of coralline, and it dies back shortly after.
Can anyone help?! I'm so confused with this tank and don't want my new tank to end up the same way...
I use Ro/di with 0 tds, red sea blue bucket salt and parameters are alk 8.2, calcium 420, mg 1340, po4 .04, no3 10-20. All stay consistent with not much hassle, as my coral use NO elements. My alk will drop by maximum .1 in a day (8.2 to 8.1). I dose 3-7 ml 2 part every few days... Usually don't even need to dose anything but alk. I even sent in an icp to ATI and nothing popped up out of the ordinary, just slightly low iodine.
The tank only has 2 clownfish, but I get a decent amount of hair algae on my overflow and sporadic cyano blooms. I feed LRS reef frenzy 1x a day. Have tried acropower, reef roids etc with no improvement. Once in a while I will get a few specks of coralline, and it dies back shortly after.
Can anyone help?! I'm so confused with this tank and don't want my new tank to end up the same way...