Jump to content

Understanding Important Water Parameters for Shrimp


BlueBolts
 Share

Recommended Posts

With so many dedicated new members, and the mountain of information, I thought I'd summarised my 6 most critical water parameters I frequently test, to ensure my shrimps have the best possible water quality.

GH (General Hardness)

GH is the measure of Magnesium (Mg+) and Calcium (Ca+) ions in water. Water described as “soft†or “hard†is in reference to GH. GH is measured in dH, and 1 dH is approx.. 17.5mg/L (ppm)

0-4 dH (Very Soft)

4-8 dH (Soft)

8-12dH (Medium hard)

12-18 dH (Fairly Hard)

18-30 dH (Hard)

KH (Carbonate Hardness)

KH is the measure of carbonates and bicarbonates in water. KH measure the alkalinity (buffering capacity resulting in the resistance of a PH fluctuation). KH is measured in dH, and 1 dH is approx.. 17.5mg/L (ppm). The higher the KH the more stability and resistance PH will fluctuate.

pH (Per Hydrogen)

pH is the measure of the balance of Hydrogen (H+) and Hydroxide (OH) ions in water. The pH scale goes from 0-14. pH reading of 7.0 is neutral, 0-6.9 is Acidic, and 7.1-14 is alkaline. pH is also a function of KH and CO2 concentration.

Nitrates

Nitrates are critical to our beloved shrimps, and often utilized to indicate the level of water quality once a tank is cycled. Nitrates between 0-20ppm should be our goal. Nitrate should be tested/checked frequently, as high nitrates can/will lead to shrimp deaths even weeks after the event.

TDS/Ec

TDS (Total Dissolved Solids)/ Ec (Electrical Conductivity) is essential to ensure overall purity of water. A TDS reading measures contaminants , but also minerals such as calcium, magnesium, and other trace elements and metals. The TDS reading of most natural clean spring water is approx. 100-200 ppm. RO (Reverse Osmosis) water will have approx. 0 TDS, and by adding essential salts/minerals to the required TDS/Ec,, this will ensure our shrimps have the purist of water with the right/essential minerals.

http://www.shrimpkeepersforum.com/forum/showthread.php/3078-Dean-s-(Ec)-vs-BlueBolts-(TDS)

Temperature

Water temperature is a critical factor, and depending on the type of shrimp, a higher/lower range can be tolerated, but does add stress to the shrimps. Ensuring no sudden fluctuation, and maintaining the recommended level will ensure the best survival/breeding zone for our shrimps.

There are many breeders using varying WP (i.e. soft water vs hard water, low PH vs high PH...etc)...please do your research and/or ask the forum members of their experience/knowledge, depending on the shrimp species you intend keeping.

  • Like 5
Link to comment
Share on other sites

Wow BB, another stunning write up, so informative & easy to understand. I think I smell another sticky, well done mate :encouragement:

Link to comment
Share on other sites

  • 4 years later...

hi there im new here and the shrimp world. i just need to be sure about a few thing if you guys dont mind helping me im from montreal canada and my tap water here super  hard 30 gh and over 

from my understanding most shrimps keepers will use r o water  and use buffers  cause there are no easy way to reduce de gh from the tap water right ? 

except rain water ,boiled water  and little thing like most, plants, and drift wood  

Link to comment
Share on other sites

2 hours ago, drdonut said:

montreal canada and my tap water here super  hard 30 gh and over 

:surprise: Woah.

What's TDS like?

Never mind the shrimps, what's that doing to your health?

 

There is not much you can do to reduce GH that high, except for RO. Plus there will be other parameters that will be out of whack as well, like KH, pH and TDS.

Boiling is all but impractical except for the smallest of tanks. And I doubt boiling water will reduce GH, unless you collect the steam vapour. Boiling reduces KH a little, but not GH.

Rain water is a viable alternative. Similar initial amount of investment just like RO systems, but free afterwards. No ongoing costs like RO.

Link to comment
Share on other sites

  • 1 month later...

Hi, thank for your information about the important water parameters. I would like to ask about Mg+ and Ca+, how much the maximum and minimum of Mg+ and Ca+ which are suitable with scrimp culture? thank you

Link to comment
Share on other sites

8 hours ago, grobest said:

I would like to ask about Mg+ and Ca+, how much the maximum and minimum of Mg+ and Ca+ which are suitable with scrimp culture?

 Mg+ and Ca+ together will be reflected in the TDS measurement, and to some degree the GH measurement. 

(TDS and GH measurements will pick up other minerals as well and those will effect the reading)

While you can measure them individually it doesn't give you the whole picture.

So you need to get a TDS meter and a GH test kit.

The TDS and GH readings will give you an indication of what you should aim for with your specific type of shrimp.

For example...

Freshwater shrimps like,

CBS, CRS (Caridina) - TDS around 130-150 and GH3-4.

Cherry shrimps (NeoCaridina) - TDS 140-180 and GH 4-6.

 

Marine prawns and shrimp are a different matter since seawater contains a LOT more Mg and Ca.

 

Edited by jayc
Link to comment
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
 Share

  • Join Our Community!

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

  • Must Read SKF Articles

  • Posts

    • sdlTBfanUK
      Those are lovelly pretty shrimp, you are very lucky to be able to keep some outside! It was interesting that you do the same regime of RO water + gh+ outside in the pond. You can try posting in the 'for sale' section of this site, https://skfaquatics.com/forum/forums/forum/148-selling-forum-livestock/ and/or try gumtree (below link) may be worth a try, https://www.gumtree.com.au/s-pet-products/cherry+shrimp/k0c18438?view=gallery I haven't used it myself, but they don't do post so is only for pick up I believe? I think it is free as well so worth a try???  Simon 
    • sdlTBfanUK
      You are of course right that the tank should bed started afresh and if none of this batch survive I won't try any more until I can do a fresh start! I do have the substrate ready to do this but now isn't the time to do it, though I wonder whether it ever will be......... I am pleased to hear you are getting babies, even if they are lower grade, you are heading in the right direction. Blue bolts are  probably my favourites of the taiwan bees. Simon
    • jayc
      What a lovely bunch. And good on ya for having a generous heart.
    • beanbag
      Hello again,  Just stopped by to wish you good luck, but if not, may as well break down the tank and start over completely. I hope someday I can have a mixed tank as nice as yours.  So far, most of my shrimp babies have been low grade blue bolts.
    • ineke
      So how is everyone going at the moment ? As some of you are aware I started breeding shrimp back in 2012 , starting with some beautiful Reds then Chocolate and blacks. I also added some blue gene rillis. They bred so well I was soon overwhelmed with shrimp which I culled heavily. Back then we were very strict with culling and didn't sell or give away the lower grade shrimp that you see now.  I had a shrimp room with 13 tanks but was fast running out of room and I had also started my journey with pure caridina- blue bolts, pandas, kk, wine reds ,etc. I was given some of the first Tibees bred in Australia and my love for Taitibees began. My poor Neos were being neglected and continued to breed so I gave a lot of them away to other people especially beginners , which happened often here on SKF. I had tanks full of Neo culls- they would probably have been much better than some of the lower grades you see now but still culls to me compared with the great quality shrimp I was lucky to have. I decided to try an outside pond and give them a chance to live- I didn't want to give low grade culls away at that time because our Australian stock was not high and it would have been a shame to degrade the stock we had. I wasn't prepared to feed them to fish so this seemed a way to get my tanks empty for my Taitibees and pure TB. I got a very large bath, put a few tubs of substrate in to help keep the ph low-around 6.5  -as that was their normal parameters in my tanks. I had lots of plants so put them in loose and released about 100 shrimp. The pond was outside under a pergola but had no filter , heaters or lights. The experiment went well and soon they were happily breeding away . The pond gets very cold in winter -around 8C and 28-30C during summer again maybe a bit more during 40C days. My basic maintenance for the pond has been just topping up with straight RO water weekly and once a year I take half the water out, catch as many shrimp as I can and top up with RO water with gh+. I do this because over the year with evaporation the TDS rises very high -as much as 400 maybe more.  During the last 3 or 4 years I have even had my cull Taitibees out there and they breed as well although not as well as the Neos. Unfortunately I had to close my room down and although I gave away lots of shrimp I was forced to put even more outside. I only had 1 large 4ft tank left so wanted to only have a few Taitibee . Several months ago I I was catching out the Neos from the pond to top it up and was agreeably surprised at the quality of some of the shrimp out there so decided to bring some Reds, chocolate and black/blue shrimp inside. By this time my 1 tank had turned into 3 !. The shrimp settled inwell in the Taitibee water parameters- TDS 110, GH 6, KH 0  Ph 6.  So now to this reason for this long narrative. The Neos promptly started to breed and I have been culling hundreds of the beggars every week or 2.As they were left to interbreed at will I have some lower grades. However some are still very nice. I have Blues, Bloody Mary. Chocolates and Blacks with the occassional Rili. I have been putting them outside but I'm worried the pond will now be overstocked. I would like to give away as many as possible but at this time I can only give them to SA people who are able to come and pick them up. I no longer have foam boxes so can't ship them. So if anyone is prepared to do a bit of work to improve the shrimp or just want some colour in their tank feel free to message me. The pictures are a mix of what I have been putting outside- some are better than these and are still inside- and the 2 adults are the parent stock. As you can see there is a variety of colour but I wouldn't put these culls in with a colony of good stock. the youngsters do look better as they grow and moult. Anyway I have several 100 to give away but I STRESS THESE ARE CULLS they would need a lot of selective breeding to get good shrimp breeding true. They would be a good starter to see if you can actually keep them or great for a child's tank. They are free to anyone who can pick them up
×
×
  • Create New...