Jump to content

TDS in CRS Tank

GotCrabs

By GotCrabs
in Water Parameters

 Share

Recommended Posts

GotCrabs Shrimp Master

GotCrabs

Posted
Posted

Hi, just wanted to hear some feedback on thoughts about the TDS in my tank.

I currently have 15 Crystal Red Shrimp in a 45l tank, substrate is Fluval Shrimp Stratum, temperature is 22c, pH is 6.6, unsure of kH and gH though, plants are various Anubias and some Java Moss on Malaysian driftwood, filtration is a Eheim 2213.

Was reading yesterday that TDS should be around 150, I tested and found the TDS in the tank to be around 260 odd, did a 50% water change and got it down to 136 I think it was, tested again today with a TDS pen and is now 160 odd, have removed melting leaves, anything that looks not healthy, which wasn't much to be honest.

Really wanting the CRS to breed and have a really healthy tank, tank water comes straight from the rain water tank and the TDS in that is 16.

The CRS tend to hang around the filter intake, one or two will wonder off now and then, not too interested in foods at the moment either, seem to just pick at the sponge intake, should I be worried?

18275085_295748264202358_297375156776856

18301741_295748267535691_405426057303741

Link to comment
Share on other sites
revolutionhope Shrimp Master

revolutionhope

Posted
Posted

Hey mate, that's a pretty big jump for 24 hours, definitely check it again tomorrow. Can you give some detail about what the substrate is and what other items are in the aquarium including especially any rocks ornaments or wood? Also what media are you using in your canister is it the eheim branded gear or something different

  • Like 2
Link to comment
Share on other sites
Zoidburg Shrimp Breeder

Zoidburg

Posted
Posted

Also... in ferts?

 

 

Highly recommended to get a liquid GH and KH test kit, especially with crystals...

  • Like 1
Link to comment
Share on other sites
GotCrabs Shrimp Master

GotCrabs

Posted
  • Author
Posted

OK, in the tank I am running with an Eheim 2213 canister filter, Fluval Shrimp Stratum, Malaysian Driftwood, Anubias nana, Anubias Paco, Anubias Afzelli, Java Moss, Amazon Frogbit, that's it, going to give the filter a clean out now and see if that resolves anything.

Link to comment
Share on other sites
GotCrabs Shrimp Master

GotCrabs

Posted
  • Author
Posted

OK, did a filter clean, all sponge media taken out and washed in a bucket of tank water, all hoses washed out through the rain water tap, everything placed back in and together, before the clean TDS was 177, tested afterwards and TDS is now 155, all shrimp are moving around more actively also, will see how it goes and test TDS again tonight.

  • Like 1
Link to comment
Share on other sites
GotCrabs Shrimp Master

GotCrabs

Posted
  • Author
Posted

Just had another look, shrimp behaviour has completely changed, alot more active, moving around the tank, exploring, not interested in being on the intake sponge.

  • Like 1
Link to comment
Share on other sites
Zoidburg Shrimp Breeder

Zoidburg

Posted
Posted

Keep an eye out for any ammonia, nitrite or nitrate spikes. Too much cleaning could potentially lead to a mini-cycle.

  • Like 1
Link to comment
Share on other sites
  • 1 month later...
Zebra Shrimp Lover

Zebra

Posted
Posted (edited)

Highly recommend getting test kits,

From my experience shrimp all hanging out on the filter is never a good sign.

I can see diatoms so I'm guessing maybe it's not a very mature tank, That could be the issue more then anything.

If your using rain water where has all the tds come from, Did you add minerals initially?

Ive got a similar setup using rainwater and they are breeding and thriving. 

They like Indian almond leaf, And I add shrimp mineral balls also.

Apart from that I never really do anything special.

 

Edited by Zebra
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
Go to topic listing

  • Join Our Community!

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

  • Must Read SKF Articles

    Shrimp Disease and Treatment
    Tibee, Taitbee, Pinto, Mischling, F1, F2

  • Tropical Fish Forum
    Discus Breeding Guide
    Discus Disease and Treatment Guide

  • Posts

    • ngoomie
      Shrimp and meds containing gentian violet

      By ngoomie · Posted

      Alright, I've done a bit more research on gentian violet's cancer-causing potential but I haven't yet done research on malachite green's to compare. But from reading the California propositon 65 document about GV (North Americans incl. some Canadians will recognize this as the law that causes some products they buy to be labelled with "known to the state of California to cause cancer", including the exact product I bought) it seems that the risk of cancer is related to internal use, either injection or ingestion. Speaking of ingestion, I think GV bans mainly relate to its use in treating fish/shrimp/etc. which are intended for human consumption, because of the above. And in countries where GV isn't banned for this purpose, it does seem to get used on various species of shrimp without causing any issue for the shrimp themselves (at least enough so for shrimp farming purposes). See the following: In February, the FDA Began Rejecting Imported Shrimp for Gentian Violet and Chloramphenicol (2022 article by Southern Shrimp Alliance) FDA Starts New Calendar Year by Refusing Antibiotic-Contaminated Shrimp from Three BAP-Certified Indian Processors and Adding a BAP-Certified Vietnamese Processor to Import Alert (2024 article by Southern Shrimp Alliance) Southern Shrimp Alliance and some other organizations have tons of other articles in this vein, but I'd be here for a while and would end up writing an absolutely massive post if I were to link every instance I found of articles mentioning shrimp shipments with gentian violet and/or leucogentian violet registering as contaminants. That being said, I know shrimp farmed for consumption and dwarf shrimp are often somewhat distantly related (in fact, the one time a shrimp's species name is listed that I can see, it's the prawn sp. Macrobrachium rosenbergii, who at best occupies the same infraorder as Neocaridina davidi but nothing nearer), but this at least gives a slightly better way of guessing whether it will be safe for aquarium dwarf shrimp or not than my bladder snail anecdote from the OP.
    • sdlTBfanUK
      Shrimp molting before eggs are hatched

      By sdlTBfanUK · Posted

      I would hazard a guess that perhaps those eggs were unfertilized and thereby unviable? Did the eggs change colour, usually yellow to grey as the yolks used up, or any eyes in the eggs. Is your water ok, using RO remineralised and the parameters in range, as I have heard others say that if the water isn't good it can 'force' a molt? How is it going overall, do you have a good size colony in the tank, you may have reached 'maximum occupancy' as a tank can only support so many occupants.
    • beanbag
      Shrimp molting before eggs are hatched

      By beanbag · Posted

      Hello folks,  The current problem I am having is that my Taiwan bee shrimp are molting before all their eggs have hatched.  Often the shrimp keep the eggs for 40+ days.  During that time, they lose about half or so, either due to dropping or duds or whatever.  Shortly before molting they look to have about a dozen left, and then they molt with about half a dozen eggs still on the shell.  Then the other shirmp will come and eat the shell.  These last few times, I have been getting around 0-3 surviving babies per batch.  I figure I can make the eggs hatch faster by raising the water temperature more (currently around 68F, which is already a few degrees higher than I used to keep it) or make the shrimp grow slower by feeding them less (protein).  Currently I feed Shrimp King complete every other day, and also a small dab of Shrimp Fit alternating days.  Maybe I can start alternating with more vegetable food like mulberry?  or just decrease the amount of food?
    • ngoomie
      Shrimp and meds containing gentian violet

      By ngoomie · Posted

      Yeah, cancer risk was a thing I'd seen mentioned a lot when looking into gentian violet briefly. I kinda just figured it might only be as bad as the cancer risk of malachite green as well, but maybe I should look into it more. I've been doing a pretty good job of not getting it on my skin and also avoiding dunking my unprotected hands into the tank water while treating my fish at least, though. Maybe I'll just not use it once I'm done this course of medication anyways, because I know a store I can sometimes get to that's pretty distant carries both malachite green and methylene blue, and in pretty large quantities.
    • jayc
      Shrimp and meds containing gentian violet

      By jayc · Posted

      Can't help you with Gentian Violet, sorry. It is banned in Australia violet for potential toxicity, and even possible cancer risks. I thought it was banned in Canada as well. At least, you now know why there isn't much info on gentian violet medication and it's use. But keep an eye on the snails after a week. If it affects the snails, it might not kill them immediately. So keep checking for up to a week. Much safer options out there. No point risking your own life over unsafe products.
×
×
  • Create New...