Kh or Dkh is alkalinity. And honestly, isnt life or death for inverts. If you have any kind of stoney corals, your calcium, alkalinity and magnesium must remain in a ballanced harmony for success. (See chemistry forum). With that said, after reading your other thread, you have stability issues. So Alk CAN be a peice of the puzzle if it is swinging up and down wildly. Your temperature is very high. Probably not the problem in and of itself, but part of the puzzle.
I hope a lot of new reefers read what Im going to say here because I see this over and over on RC. Please give us the ACTUAL, UNFILTERED, UN-OPINIONATED
FACTS about your test results. DO NOT be embarrassed about something you have done or something you may know about your system. It is impossible for you to get quick, relevent, life saving advise from the good people here on RC without ALL the facts. I know some of the questions may be impossible for you to answer (for example, I would LOVE to know the TDS of the water youre using) I see too may people saying "My perameters are fine". If you say that, you cannot get the life saving help you need. If you are having a serious problem and your test kits are telling you your perams are fine, throw them away and get good quality test kits. Do yourself a favor and throw away your hydrometer and get a decent refractometer.
Theres no way we can stop new reefers from adding animals to a system that isnt ready, but if we can get ALL the facts, theres a chance we could crack the code and help you. Without the facts, theres just no way.
So before you even post your MAYDAY, here are some suggestions to have ready...
PERAMETERS
-salinity (include any swings)
-temperature (include any swings)
-ammonia
-nitrate
-phosphates
-calcium
-alkalinity
-magnesium
EQUIPMENT
-tank description
-lighting/bulb age
-filtration
-flow
-sump/refugium info (if applicable)
-sand bed or bare bottom
-reactors/dosers
-auto top off system (if applicable)
OTHER
-bio-load (fish stock, corals, inverts, cuc, etc...)
-husbandry practices (water change frequency, feeding, manual dosing, testing frequency, test kit brand and age, etc)
-**Water source** (TDS if possible...This is just so incredibly impotant!)
Im sure I am missing something, but some honest factual information in the above list will go a long way in diagnostics.
"But I dont have time to post all that in my emergency" you might say? If you are serious about the well being of your investment, spend an hour or two and build a spread sheet on you computer/ipad with this information, so when you have an RC MAYDAY, all you have to do is copy and past your info to your thread. Just a quick update on your most current perameters and bulb life and any other relevent updates.
We, as reefkeepers, are passionate about the well being of these critters. we truly want to help you. Some of the replies youll get may be condescending. Usually thats a product of frustration due to lack of facts. Other times, its the frustration of seeing someone introducing a beautiful, helpless creature into a toxic, death chamber. But please dont let these people deter you from being completely trasparent about your system.
I know this post seems a bit forward in this thread, but I just read and posted in your other 4 page thread with the exact same title and RC is simple over run with similar mayday threads.
I truly hope we can help you
