My vote is a toxin. Run cuprasorb. Get the ATI water test or other. Sorry your having issues. How was the snow this year? Hopefully great.
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Pictures?
Sorry you post perfect parameters and say stable for 6 months. Give me a fts front tank shot. Ty
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Yes and have used two different units to compare.Have you calibrated your salinity device?
I questioned the RODI system as well and purchased a brand new unit, installed and did a 100% water change over the week with the new RO/salt mix.any coral wouldnt die this fast from lighting or issues other than parameter issues, i dont really even acclimate most corals anymore (other than temp),
I worry about a faulty rodi or misreading of some parameters which will be reflected in an icp test. Snails and clams wouldnt die this fast either, i think heavy metal or even maybe electricity like the other said. Thats the only thing that would kill invertebrates that fast and not effect fish as much.
Here’s a pic of the tank, fish are thriving and never had an issue with them or lost one. Sand bed is only 1” deep.
I saw another that did the same with their rodi but as long as the unit channels water through each section and has good pressure initially the unit is fine, maybe just bad filters inside.I questioned the RODI system as well and purchased a brand new unit, installed and did a 100% water change over the week with the new RO/salt mix.
Put a hammer in and a mushroom and GSP and two snails and the next day all of them were dead. The hammer melted away within 12 hours and the mushroom closed up to a ball and then let loose.
Current USA IC Dual PRO.What lights are those? Those appear to be seriously below what you'll need to keep corals alive. That tank also looks really white for being 6 months old.
In my office in the basement and have tools there but I think unlikely for contaminants other than that.+1 on stray voltage
Looks like the tank is in your garage or a shop...any contaminants in the air?
Replaced the whole unit with brand new filters before changing out all the water in the DT and everything still dies when i put it in.I saw another that did the same with their rodi but as long as the unit channels water through each section and has good pressure initially the unit is fine, maybe just bad filters inside.
Have you taken all the pumps apart to look for cracks or rust?
Hopefully icp will reveal the issue
Thats all it seems to be pointign towards. Ill keep you posted on the test results.My vote is a toxin. Run cuprasorb. Get the ATI water test or other. Sorry your having issues. How was the snow this year? Hopefully great.
I 2nd the ICP test idea, because all the home test kits have very high tolerance and will not fo a good job detecting heavy metals.Have you done an ICP test? Also stray voltage is alarming could be a heater / wave maker as you tested , everything plugged into GFCI? I would also get a ground probe for the tank

