Jump to content

Shrimp water changing method discussion


lachie1998

Recommended Posts

Do you know whats in the mineral mix? If plants are using it, some would have to be fertiliser?

Do you run high densities/numbers of shrimp? If you do, it may explain why there is no build up, as i bet the shrimp would be using it up. It has a lot of similarities with how marine keepers have to supplement their water to keep up with the growth of corals, even in massive aquaria.

Link to comment
Share on other sites

would some spring water be better? it should have no chlorine ect..

Link to comment
Share on other sites

can you get RO water from the shops? and i dont have and saltyshrimp gh+:cower:

Link to comment
Share on other sites

what do you want the water for then? most aquarium shops that sell marine fish have RO water for sale.

Link to comment
Share on other sites

for my planted cube with my crs and cbs

sorry i should of said that somewere

Link to comment
Share on other sites

you can not use RO/rain water for shrimp with out adding minerals back to the water. the shrimp will die.

if your using tap water just be sure to use a De-chlorination product first.

Link to comment
Share on other sites

so does tap water still contain the minerals?

i shall get some saltyshrimp latter down the track when i get more serious:D

Link to comment
Share on other sites

so does tap water still contain the minerals?

i shall get some saltyshrimp latter down the track when i get more serious:D

Yea, tap contains minerals, RO, Distilled and Rainwwater are stripped of these minerals hence people add back minerals through tap water or a mineral supplement like Saltyshrimp. Saltyshrimp is actually pretty cheap at $35 for about 1500L of water ;)

Link to comment
Share on other sites

Nice Dean, certainly makes alot of sense about not doing water changes, and top ups with minerals, now i have a better idea of your system. Probably more prone to increasing tds in a smaller tank.

This interests me alot as I'm doing my PhD on sea urchin aquaculture; the way in which sea urchins strip seawater of calcium carbonate, particularly in the high densities suitable for aquaculture, shares some similarilities with how shrmp in our tanks use minerals from the water to grow their skeleton.

Link to comment
Share on other sites

i would have to agree about smaller tanks and the need for small water changes sometimes. but i dont have any so can not comment with 100% certainty.my smallest tank is a 4x2x2 and it has not had a water change for about a year now. i just do top ups but it also doesn't have the mineral additives ads its a tap water tank. i use rain water for 4 top ups and tap for 1 and do this always. the PhD sound like you would have a much better understanding of this than most. i am only speaking from experience with my tanks/system and as we all know with shrimp keeping, what works for one person doesn't always work for another.

Nice Dean, certainly makes alot of sense about not doing water changes, and top ups with minerals, now i have a better idea of your system. Probably more prone to increasing tds in a smaller tank. This interests me alot as I'm doing my PhD on sea urchin aquaculture; the way in which sea urchins strip seawater of calcium carbonate, particularly in the high densities suitable for aquaculture, shares some similarilities with how shrmp in our tanks use minerals from the water to grow their skeleton.
Link to comment
Share on other sites

im adding half spring water and half tap water to add the minerals back into the system, sound good?

Link to comment
Share on other sites

I use ro water for top ups (evaporation ) and if i want to lower my tds i use ro and take a bit of tankwater out .water change rare but if i do i remineralize the water with mosura mineral plus to the same tds or lower by 10-20 points

As i top up i allways do this slowly with airline and clamp ,to drip in slowly .I just got some bee shrimp mineral from Dean and will give it a go

Link to comment
Share on other sites

I always say keeping aquariums is more art than science. I bet even if i took over looking after someone elses tank/system, doing the same things they do, that i wouldn't be anywhere near as successful as they are. All the little tweaks that one can do knowing their own tank/system makes a huge difference.

Oh and if you are interested in some of the work i do with sea urchins, my first paper can be found here

http://www.plosone.org/article/info%3Adoi%2F10.1371%2Fjournal.pone.0028054

Shameless plug...:barbershop_quartet_

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
  • Join Our Community!

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

  • Must Read SKF Articles

  • Posts

    • ngoomie
      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
      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
      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
      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
      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...