Low ph in shrimp tank - The Planted Tank Forum
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post #1 of 41 (permalink) Old 11-18-2020, 10:23 PM Thread Starter
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Low ph in shrimp tank

Hi there
Iíve had my tank set up with fluval stratum, drift wood and plants for 6 months now. I was using tap water and had my ph at 6.3 Kh 0.5 gh 5. Iíve recently switched to ro water using gh only to reconstitute to the same tds I have in my tank. I also bought a more expensive pen to monitor parameters. (All calibrated) now I have a range of ph results to choose from
Old pen 6
New pen 5.8
API test 6 ish... definitely a bit of green in there, if I add acid is goes much more yellow.
I have about 60 shrimp in there. The CRS seem to be breeding fine , but the numbers of my RCS seem to be dropping.
Iím assuming my ph is to low for the RCS to thrive. And in what Iíve read the CRS can only tolerate a pH down to 6.2
Iím now concerned that having no kH in there is allowing bigger ph swings. I was considering using some kH in my reconstituted water to try and have more buffering. Or should I remove my driftwood?
Confused about whether to just leave it be or to change something.
Louise 😐
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post #2 of 41 (permalink) Old 11-18-2020, 10:39 PM
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This subject has come up daily lately! Long and sort of it is, it's fine. Neocaridina shrimp (cherries and their color variants) are FAR more adaptable than bees; and if you're going to keep both, best to cater to the more sensitive shrimp. pH swings from 0 dKH certainly are nothing to worry about with buffering soil keeping things steadily acidic. I breed Neos in Caridina tanks currently. I can't say scientifically that they have the same survival rate of offspring and such, but they seem to be normal, thriving colonies. When I tried keeping bees in Neocaridina conditions, that didn't work out so well.
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post #3 of 41 (permalink) Old 11-18-2020, 11:41 PM
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Sorry I have to disagree with the above. The cherries need kh to properly molt. You should keep. Crystals and cherries separate. Get the cherries back in your tapwater and keep doing what you're doing with the crystals.

Edit.

I'd actually get salty shrimp gh/kh and use that for your rodi for the cherries. Your kh from trh tap is too low too

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post #4 of 41 (permalink) Old 11-18-2020, 11:53 PM
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Hmm. 3 tanks going currently:
Goldenback yellow Neos with pintos (0 dKH):

Blue dreams with tigers (0dKH):

Orange Neos with CRS (0dKH)

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post #5 of 41 (permalink) Old 11-18-2020, 11:59 PM
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You got like 6 neos in each tank visible. The other caridinas are in much higher numbers. This clearly indicates what I said is true. I'm not even trying to argue here. It's basic husbandry of the shrimp. Neos require kh. Sorry but it's a fact. Sure they can 'last' without it, but you'll never having a thriving colony in caridina parameters.

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post #6 of 41 (permalink) Old 11-19-2020, 12:00 AM
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OK dude.
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post #7 of 41 (permalink) Old 11-19-2020, 12:01 AM
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Lol. Why so mad. You're giving out bad advice.

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post #8 of 41 (permalink) Old 11-19-2020, 12:05 AM
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I must have gotten really lucky with these guys in 0kh.

RO water using only seachem equilibrium to bring gh up to 8.



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post #9 of 41 (permalink) Old 11-19-2020, 12:10 AM
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Your previous posts said you got the shrimp berried. Those are young shrimp in a new tank. I'm positive they will not thrive unless you add kh to your water.

Again, not fighting with anyone. Trying to give good advice so people can have success.

But do you, if you want to have a colony of 20 shrimp that slowly dwindles you can risk it. Or you can raise kh to 5 or 6 and have hundreds of shrimp.

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post #10 of 41 (permalink) Old 11-19-2020, 12:15 AM
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Thanks for the info.
They've been molting well. I counted 30 shells earlier in the week.
I'll definitely keep a close eye on them if things get wonky I'll up the kh for sure.
For now though, I'll keep on with the experiment.
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post #11 of 41 (permalink) Old 11-19-2020, 12:24 AM
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Thanks for the info.

They've been molting well. I counted 30 shells earlier in the week.

I'll definitely keep a close eye on them if things get wonky I'll up the kh for sure.

For now though, I'll keep on with the experiment.
All good! Look into it yourself and Google neocaridina parameters. It's just proven husbandry that they need kh. You can keep a colony going for a while without it but it's not a long term solution.

I breed them all so I've spent a lot of time learning what they need.

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post #12 of 41 (permalink) Old 11-19-2020, 05:24 AM Thread Starter
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Is my ph to low. I donít know which reading to believe?
Do you think it will be my driftwood causing the drop?
Not sure if I need to remove it or if itís ok?
post #13 of 41 (permalink) Old 11-19-2020, 11:47 AM
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Is my ph to low. I donít know which reading to believe?

Do you think it will be my driftwood causing the drop?

Not sure if I need to remove it or if itís ok?
Nah ph is fine. The soil and driftwood both lower it. Focus on gh, kh, and tds.


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post #14 of 41 (permalink) Old 11-19-2020, 03:02 PM
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Quote:
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...It's just proven husbandry that they need kh. You can keep a colony going for a while without it but it's not a long term solution.
Just to throw it out there, I bred neos in aquasoil without KH for years. Had more than I knew what to do with. So the word "need" isn't necessarily true.


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post #15 of 41 (permalink) Old 11-19-2020, 03:43 PM
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Just to throw it out there, I bred neos in aquasoil without KH for years. Had more than I knew what to do with. So the word "need" isn't necessarily true.
Curious what was your water source? There may be exceptions based on other factors but as a rule neos generally won't thrive in less than 2kh or so.

I've heard and seen random exceptions to the rule but I don't think that should be taught to beginners.

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