A Cursed Tank?

not trying to be mean but can you stop with the +++++ thing????!!!

thanks!!!

i would recommend an API test kit!!!
 
My substrate is layered 2in of potting soil (bottom), 1in of sand + a layer of flourish (top)....

What kind of potting soil?
Did you mineralize it?
There could be added fertilizers, or pieces of manure, even dead plants for added fertilizer. The manure and dead things rot in your water giving a LOT of ammonia off, not to mention the fertilizers are very harmful to your fish.
Have you been noticing any algae blooms?
Even if you haven't I would check the bag to see the ingredients.
 
He's using pure RO. Of course KH and GH are zero. I'd just use dechlorinated tapwater.
 
Of course. How silly of us to guess that there could possibly be calcium carbonate in the substrate by say using white aragonite rather than something inert. Or that the tap water could be 8.0 and kill some species of shrimp. Maybe a rock that was leeching minerals into the water. No, of course not, they're using pure RO; that's the only thing that could be causing the problem and pure tap is the obviously the best solution, all variables aside.
 
The GH and KH read zero and we've been told it's pure RO. It's not hard to join the dots. If the substrate were leaching calcium those two would not be zero.

Besides I never said that's why he's losing stock; I said that's why the KH and GH are zero.

In 99% of cases dechlorinated tapwater is the best way. We've already been told that the reason for not using it was an unfounded fear of chloramines.
 
They read zero on a test strip that may be inaccurate, waiting for the OP to post liquid test results. Just adding tap water without testing it first can result in more loss of stock in some cases; in their case likely not but it should still be tested with an accurate kit. Not much we can do until we know if the parameters were accurate and other questions are answered if they were not.
 
AquariaCentral.com