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Discussion Starter · #1 ·
I think I'm done with RCS once the last few guys pass. I keep getting these cracked shell deaths and I don't understand it. I thought I'd figured it out by adding filtered water to lower my hardness but I still got deaths. I stopped that and things seemed fine for a while...regular healthy moltings and now this again. What do RCS like? Not my water apparently, fish, snails, plants all do fine but not RCS. So frustrating; I thought RCS were supposed to be easy and forgiving?:icon_neut

KH = 12
GH = 14
PH = 6.6 with co2 on
TDS = 385
 

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385TDS and thats lowered for you? wow



Cherry Shrimp
PH: 6.4 – 7.6
KH: 0 – 10
GH: 4 – 14
TDS: 80 – 200 (could probably do 250 if your other parameters are stable)
Water temp: 18 – 23
 

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All your readings are 2x mine except my PH is around 7.0. Most of my shrimps died in that damn recycled coal slag, seems like you're using the same stuff. Switching back to EcoComplete now.

See if you can find someone local to grab shrimp that's acclimated to your tap. Surprised you're water has such high levels.
 

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Yeah that's some really hard water you got there. What size tank are you keeping them in?

If it's a small tank maybe you can just get a 5g refillable jug and use some of store bought distilled water to do a 50/50 mix and help lower the numbers.
 

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Let us all try and add to the knowledge base presented by you.
First, I can say that in my opinion your "cracked shell death" if denoted by your pic is simply the space between plates of exoskeleton around the time of molting. I see this ALL the time with many types of shrimp.
Second, the data given by you describing your water conditions clues me in on something else. The fact that the shrimp are dying during the time when the shrimp are obviously about to molt AND your water is extremely hard tells me that you have a molting issue and not a disease or whatever. I suspect that the shrimp cannot successfully molt due to elevated mineral content.
I also agree that the pH is too low for Neo's.
 

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Yea your levels seem to be a little high. They are far from what mine are, mine breed fine in my tap. I would look into an RO system and acclimate your tank to that level. Don't just change all the water at once they will die if you mess with the parameters too much.
 

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Weird, My tap is liquid rock as well. TDS-400, KH - 14, GH - 16, PH - 8.2-8.4 and our colony is thriving like cockroaches. About the only thing I see is your Ph. How are your swings at night? I assume its on a solenoid and shuts off at night? With your TDS/GH/KH I imagine it is buffering back at night and might be causing a crazy swing in Ph. Have you tested maybe in the morning before CO2 starts again, it might confirm/discount what I think might be going on. Our neos never enjoy low ph water, but your numbers should still keep them alive and doing alright.
 

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Discussion Starter · #14 ·
About the only thing I see is your Ph. How are your swings at night? I assume its on a solenoid and shuts off at night? With your TDS/GH/KH I imagine it is buffering back at night and might be causing a crazy swing in Ph. Have you tested maybe in the morning before CO2 starts again, it might confirm/discount what I think might be going on. Our neos never enjoy low ph water, but your numbers should still keep them alive and doing alright.
Little confused here. I thought high KH controls acid and thus PH swings. Therefore, my PH shouldn't be moving very much at all since I have a high KH. E.g. CO2 injection should have little impact on my PH. I'll test while it's off as well to see. I know that my drop checker doesn't move day or night.
 

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Little confused here. I thought high KH controls acid and thus PH swings. Therefore, my PH shouldn't be moving very much at all since I have a high KH. E.g. CO2 injection should have little impact on my PH. I'll test while it's off as well to see. I know that my drop checker doesn't move day or night.
Co2 changes your ph all the time. That's why some use ph controllers with co2 to stop the swings. Drop checker is just for a quick check and is by no means accurate. Many guides here on how to dial in your com and take accurate readings

-Chris
 

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people here in Utah keep them in hard water and breed them in there, so i don't think GH/Kh is the problem, it sound more like co2 or csm+b if you are dosing too much of either one.
 
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