Jump to content
Natasha Balkwill

Ph problem or bacterial?

Recommended Posts

Natasha Balkwill

Hi Ladies and Gents, 

I need some help. Some of the shrimp in my PRL tank are starting to loose their colour and go translucent. I noticed this morning that the shell of one of them has changed to a light pink. He still has the thick white shell, its just the white part is turning pink. I'll attach a photo later on today. I know pink means internal bacterial infection but his "insides" look fine, its just his shell. By the time I went to get my phone to take a photo he ran to the other end of the tank ... typical.

My water prams 

Ph: 6.6

Gh: 6 

Kh: 0 

TDS: 241 

Temp: 22-24 degrees 

I  know my Ph and my TDS are a little high so I've been lowering it slowly over the last few weeks. I didn't want to change it too much and shock them. I do a 10% water change weekly and drip my new water in. I use a mixture of RO and tap water. I have fluval stratum in the tank and also have Indian almond leaves, subwassertang moss and cholla wood. I have green walls for them and I use a sponge filter. 

Is this a Ph problem or is this bacterial? I've attached a photo of one of the females that have changed colour and who have gone translucent. 

I appreciate all your help! 

  • Like 1

Share this post


Link to post
Share on other sites
beanbag

Maybe something in your tap water changed?  People with sensitive shrimp should not be trying to get their minerals from tap water.

I would get a GH remineralizer and do 10% water change per day (RO only + GH) to get the TDS down.

I dunno, could also be ammonia, nitrite, nitrate.  (test, and use Prime to temporarily fix)

Edited by beanbag
  • Like 1

Share this post


Link to post
Share on other sites
Zoidburg

How long has the tank been set up for?

How long have the crystals been in the tank?

Have the crystal been breeding and reproducing?

It could be a pH issue, a bacterial issue, maybe even stress from parameters not remaining stable?

Share this post


Link to post
Share on other sites
Natasha Balkwill

I was thinking that maybe something has changed with the tap water. My ammonia is 0, Nitrite is 0 and nitrate is 10 

The tank has been set up for over a year but these prls have been in there for 6 months. I've had prior crs in them before I put the prls in so the tank wasn't empty. 

The are breeding but the babies aren't really surviving beyond a few days old 

Share this post


Link to post
Share on other sites
beanbag

Many people want nitrate to be even lower than 10ppm

Share this post


Link to post
Share on other sites
sdlTBfanUK

I may be wrong but the PH looks fine.

Generally though it sounds like you are having the same problems I had years ago using tapwater. As beanbag says I would stay away from tapwater, use RO water and remineralise then you know what is in the water. As zoidburg says messing about with water parameters may also have caused them stress.

Simon

ps. (sorry every one else you must be a bit fed up of me linking this thread???) Here is the article I did about my problems and it may help, hopefully anyway?

https://skfaquatics.com/forum/topic/14025-tap-water-taiwan-bee-uk-zerowater/?tab=comments#comment-135328

 

  • Like 1

Share this post


Link to post
Share on other sites
Zoidburg

GH is kind of high... especially if they came from a tank with lower GH. GH should be 3-5 so lowering might help. Could also be a diet issue.

 

Agree best to use RO/distilled with GH minerals.

Share this post


Link to post
Share on other sites
Natasha Balkwill

I only started lowering the tds and ph after they started to loose their colour otherwise the tanks prams have been stable. Maybe they have added something in the water here. My tank is 90% RO water at the moment and about 10% tap.

I thought it was diet related as well but they get such a variety of different shrimp foods and vegetables so I don't think it could be that. 

Maybe I'll switch to only RO water and use some salty shrimp and see if that helps. Its kind of frustrating not knowing what is causing the problem. 

Thank you I will have a read of that link 

  • Like 1

Share this post


Link to post
Share on other sites
jayc
2 hours ago, Natasha Balkwill said:

Maybe I'll switch to only RO water and use some salty shrimp and see if that helps

Yep. Do that as a starting point.

Stabilise pH and TDS. That is, keep it from rising and falling too much.

 

2 hours ago, Natasha Balkwill said:

Thank you I will have a read of that link 

You already use RO water, so that link might not help you.

Share this post


Link to post
Share on other sites
Natasha Balkwill

jayc Thank you for that! 

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



  • Must Read SKF Articles

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

    Join Our Community!

  • Posts

    • jayc
      It must have been an aluminium heatsink. The Indium in Liquid metal will eat through aluminium. Only copper or nickel plated heatsinks can be used with liquid metal. It says so on the packet, at least my pack of Thermal Grizzly Conductonaut does.
    • jayc
    • kms
      I will try to add all the old tank's shrimps at the end of August to the new tank, had a problem with my chiller this morning, try to make it more efficient by adding a better heat sink grease, I added a liquid metal grease, apparently you can't add liquid metal, when heating up, the heat sink turning to dust, along with part of the cooler inlet and outlet. So far the shrimps are ok.    
    • sdlTBfanUK
      I have had the new shrimps a week and have ordered some new ones(10) for delivery friday. There are probably at least 6 of the 8 alive (they may even all be alive still) but as the tank is so densely planted it is difficult to tell, but I saw 2 black and 2 red this morning, as yesterday, but I'm sure 1 red and  1 black weren't the same as the ones I saw yesterday so there are probably at least 6, if that makes any sense??? Anyway that will be it for now and I will just let the tank and shrimps do there thing once this batch are in there in a couple of days, and I can get back to the usual routine as was, before this unfortunate event wiped out the last lot. All parameters are good, including the nitrates now, but there are a lot of brown patches on the plants and moss balls still......... It all looks a bit drab and uninspiring and brown!!! I probably just need to be a bit more patient? I will do some maintenance tomorrow and a small 2L water change, then the new shrimps will go in on friday after acclimatising. The shrimps were totally uninterested in the spinach or shrimp lolly I put in at the weekend but I am assuming they have so much biofilm at this stage that that is keeping them busy and well fed and they are staying under cover until they get used to their new environment and this strange ugly monster that keeps peering in at them through the glass from time to time? I guess if some 100ft tall bloke kept peering through my window a few times a day I would be a bit nervous/reserved shall we say? I removed the spinach and the shrimp lolly and put the shrimp lolly in the betta tank and within minutes there were 10 shrimp on it so there was definitely nothing wrong with that shrimp lolly! Simon
    • jayc
      Traps don't work on hydra. Even with planaria, it is slow and it doesn't catch them all.
×