hypo vs. inverts

[JNye]

I have my display tank in hyposalinity right now for ich treatment and have a few inverts doing fine. they include a peppermint shrimp, 2 blueleg hermits, red-footed conch, and a couple cerinth snails, and prolly a few other snails too. Its at 1.009 and i lowered it for a period of 4 days. its been at 1.009 since the 27th of Feburaury. are the inverts days numbered or will they make it through? I thought they'd perish...i couldn't catch them...but they are fine.

I have found plenty of dead isopods and several different worms as i have been stirring up the sand and siphoning out as many bidies daily during WCs.

Basically i thought all inverts would die...is this limited to certain inverts or what?

 

[greenbean36191]

Different animals have different tolerances. The more stenohaline species like those restricted to reefs do poorly in low salinity. Some, like hermits and your "conch" (which is a predatory snail rather than a conch BTW), ceriths, etc. can often be found in shallow lagoons or the intertidal where they're subjected to more variable salinity. They're still osmoconformers though, so can't tolerate low salinity for long periods.

 

[hypernesia]

I would get all the fish out and qt them in hypo and slowly return the DT to NSW levels for salinity. The fish can handle it the inverts not so much. FWIW keep the fish in qt for 6-8 weeks and let the crypto in the tank run through its life cycle with no fish host they will die off.

 

[JNye]

okay, what about the peppermint shrimp?

i've already made my decision on hypo in th DT. I am only gonna do it for another week. I am fully aware of the life cycle of crypt and recommended QT/hypo procedure.

 

[hypernesia]

If the P.S. haven't gone down hill by now you are probably ok. Everything is an experiment with our tanks! Hope it goes well for you