Jump to content
Sign in to follow this  
Damien Dyer

Is zero KH affecting PH

Recommended Posts

Damien Dyer

Hi I signed up awhile back but this is my first post so I hope I'm in the right section. I've been keeping crs/cbs for a couple of years now, starting with a dozen and now have approx 200. I have a large 200lt tank and use fluval stratum. My parameters have always been pretty steady, tds 130-150,  ph 6.7-6.8, GH 3-4 and KH 1-2 and have had great sucess but over the last few months my KH is reading zero and the PH has gone from 6.8 to 5.9!! All shrimp are still doing well and no noticeable deaths but the ph drop is concerning. Is this directly related to zero KH? (No buffering) Any advice on the cause and any action that I should take would be very much appreciated. Thank you 

Share this post


Link to post
Share on other sites
WhySoCRS

How old is your Fluval Shrimp Stratum? From what I’ve read on here it loses it’s abilities quicker then other substrates, this could be the reason perhaps.


Sent from my iPhone using Shrimp Keepers Forum

Share this post


Link to post
Share on other sites
jayc
10 hours ago, Damien Dyer said:

zero KH

Have you been keeping up regular water changes?

And regular tank cleaning including filter media clean?

What water do you use for water changes?

Share this post


Link to post
Share on other sites
Damien Dyer

The substrate is almost 2 years old, I know it's getting on in age. But I use RO water which comes out around 7ph so it still seems to be lowering my ph and keeping a stable Gh. I guess my main question is, is the zero Kh the cause of the slowly falling ph? Or possibly something else? BTW nitrites, nitrate, and ammonia are not an issue. Cheers 

Share this post


Link to post
Share on other sites
Damien Dyer

I top off with straight RO water every week to maintain tds and do a 15-20% water change once a month with SS GH+ maintaining 140 tds. I'm probably a little slack on cleaning the sponge filters, probably only every 6 months but when I do they are flushed under running rainwater and they're filthy. Would that effect Kh? I've heard of people using ss Gh+kh in small enough doses to maintain a kh of 1-2. Is this recommend by anyone? Is the zero kh the issue with my low ph?

Share this post


Link to post
Share on other sites
WhySoCRS

Just to play it safe you would be better off cleaning those sponges in tank water.

Share this post


Link to post
Share on other sites
jayc
6 hours ago, Damien Dyer said:

Is the zero kh the issue with my low ph?

zero KH is not the cause in itself. Because you have no buffer (0 KH), anything can cause the pH to drop.

A mature filter and the process of beneficial bacteria breaking down nitrates will cause a reduction in pH naturally.

 

 

6 hours ago, Damien Dyer said:

I've heard of people using ss Gh+kh in small enough doses to maintain a kh of 1-2.

No need to buy SS GH/KH +, since you already have GH+.

You can add a pinch of bicarb soda into your water changes to get the same effect.

Edited by jayc
  • Like 1

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
Sign in to follow this  

  • Similar Content

    • macjeff
      By macjeff
      I have had a 20 gallon RCS tank for 3 years now.  I have moss balls and some JAVA moss, drift wood, and mineral rocks.
      Only RCS in the tank and some soft shell snails I have in there I breed for my fresh water puffer fish in another tank,.
      My issue is that the shrimp live 1-2 years and they breed just fine but I never see babies.  I see plenty of eggs but never babies.  (Well 1 or 2 a month maybe but they disappear)
      The adults keep going just fine until they die off of old age or something else.
      I keep about 100 shrimp in the tank and have to replenish 50 every 6 months about.
      Water Temp I keep about neutral. 
      PH- 7- 7.2
      I use distilled water or sometimes Reverse Osmosis water because our tap water goes through a water softener which puts a LOT of salt in it which makes TDS very high so I try not to use tap water at all.   
      I feed every 2 days with Azoo or other good food and not much.  Its all gone by the time I feed again.
      I do add some powder food for the babies and a shrimp bacteria powder (just started that about 6 months ago but has not helped or hurt)
      Someone told me due to the distilled water my issue is LOW TDS.  So I bought TWO different meters.  I tested the distilled water and its about zero which is correct.  I then tested my water and its about 700.   I do top offs and just did a 20% water change last weekend with distilled water.
      So is that the issue?  Should I pull out the mineral rocks?
      I am thinking tonight to take about 8 gallons of water and drain the tank down about 40% and then fill with the distilled water.   I can repeat the process in a week and once I get the TDS under 150 I can add a little shrimp mineral to get it to the 200 range.   The reason I am saying that is the TDS could be bad TDS and not the minerals they needs.  I ordered some Salty Shrimp Mineral which I heard was good.
      Should I just give up?
       
      Jeff
    • NoGi
      By NoGi
      One of our sponsors, @Filter Systems Australia are seeking an expression of interest regarding a range of filter media they are considering carrying. If interested post here. Current prices are as follows:
      Mafian Stone: $15/Kg Tourmaline: $25/Kg Neg ion: $30/Kg FAR : $25/Kg But this will change (go lower) subject to demand and our SKF discount.

    • NoGi
      By NoGi
      Hi All,
      In addition to the RO unit FSA generously donated to SKF for the Christmas comp, they are willing to offer a 5% discount on purchases for SKF members. You just need to place the order by phone and mention the discount. For online orders use the following code: SKF5.
      Any issues let me know.
      FSA are also very keen to get feedback on their products. I encourage any FSA product owners to write up a review here: 
      http://skfaquatics.com/forum/articles/product-reviews/

    • NoGi
      By NoGi
      Source: http://www.fsahome.org/uploads/4/8/5/9/4859831/gt1-70_di_brochure.pdf
    • NoGi
      By NoGi
      Source: http://www.fsahome.org/uploads/4/8/5/9/4859831/gt1-70_di_brochure.pdf

      View full article


  • Must Read SKF Articles

  • Join Our Community!

    Register today, ask questions and share your shrimp and fish tank experiences with us!

  • Posts

    • sdlTBfanUK
      Welcome newbie! That sounds a lot of pests you have? I have used SLAqua Z1 which is meant for hydra and Planaria, and it worked for the hydra I had - not sure if  it is available where you are? It sounds like you have done your research and know what to do? I would probably just buy everything new and start again so there is zero risk of a recurrence as you have several problems, and be slightly quicker and could go up a size of aquarium if that is something that interests you etc and as you state you are going to cycle it again, but I usually do take the easiest route, though that tends to be the costliest! I can't see any problems with your plan though you could just use tap water dechlorinated at stage 6 as that will be removed a week later? I would probably get new sponge for the filter as I expect that is really cheap as well and that can go in with the shrimps in the temporary tank to get some bacteria on ready (it can just float in the tank)!  How many blue bolts do you currently have? Simon
    • Grubs
      I hope you can feed them. I kept pipefish for a while but had enormous trouble feeding them.  They wouldn't take any prepared foods and are massive predators so I was feeding them all my small fish and all the shrimp I could throw at them.    When I got them I thought they'd eat fresh hatched brine shrimp but no they wanted MUCH bigger.   They both jumped out of the open top tank.  
    • Grubs
      DAS are very robust and I've kept them in a tank with Melbourne tap water and in rainwater with  DIY hardness booster.  You'll find them in Northern Australia in both the fresh and brackish sections of rivers so they have really wide tolerances.  My tanks range from 24C to 29C If you get some keep the covers on for the first 2 weeks as they can be jumpy if your water parameters are a long way from what they were housed in. After a couple of weeks they settle down and rarely jump.  I know some people with open tanks put gladwrap over the top for the first couple of weeks only. I'll also suggest that no-way will they interbreed with your Tangerine Tigers -  they are very different shrimp and their bits wont fit together even if they were so inclined.   If money is tight then Paratya are about half the biomass but will breed up easily and also wont cross with the TT .... or do both.  You can keep all three together in the same tank.
    • Crabclaw
      Idk my tds but the rest sounds similar to my tap. If Grubs uses just dechlorinated tap water too then we probably would have the same parameters as we’re both in melb. And that’s my normal temp as well.  How do you keep them @Grubs?
    • sdlTBfanUK
      I would get a few if you like them, the odd loss of a baby shrimp wouldn't really be a problem. There are lots of shrimp people that have the dwarf Corys with their shrimps.As you say, it maybe better to wait a bit until you have more shrimps first but the cory doesn't hunt shrimps as food! Simon
×
×
  • Create New...