hi can anybody help

hello everyone cool site can anyone help me ive got 300 litre marine tank.
ive got 2 clown 2 humbug and a regal tang and they are all doing really well my test results are as follws
nitrate 0
nitrite 0
ph 8.2
kh 240

i thought yesterday that i would get some clean up crew so i got two cleaner shrimp 5 turbo snails and 3 hermit crab i put them in my tank and within 3 hours they was all dead i was gutted.

can anyone tell me what could of caused this should i test for anything else that could be in the water or could i have put them in too soon they was left in there bag for about an hour before i put them n the water.
now im scared of getting anymore but need something

 

What is the temp of the tank? did you just float the bag or did you drip them? sounds like float???

 

Hi Silkman

KH - that sounds wrong to me? mine is 14 and that would be considered high? are you measuring something else

if inverts die and the fish are OK I always suspect copper? have you used any medications on the fish in the tank Cuprazin for example? have you used tap water and your pipe work is copper

do you have any children who may have thrown some pennies or twopences into the tank (wishing well)

I would take a sample to your LFS of you tank water and get them to run a copper test for you - or buy a copper test kit

if it is copper you need to use a sea chem product called Cuprizorb in your filter and that will absorb it

there may be other causes , but copper is always my number 1 suspicion when inverts die quickly but fish seem OK

how long has tank been set up by the way? and have you tested for ammonia?

Steve

 

+ 1 on what Steve posted on copper

 

thanks guys my tank was started about two months ago and i only live 15 mins drive away from the sea so i wanted to try something diffrent and use the sea my live rock thrived on it then ater 6 weeks i was given the fish in an emergency because the tank they was in started leaking
temp is 78 degrees f when i put them in i floated them with the lights off i think ill have to check for copper

 

I would also test for voltage in the water. You should always run a ground probe in a tank if you have submersible pumps. Also may be a copper problem too, which as already been stated.

Oh.. Welcome to 3reef.

 

funny you should say that i thought i felt a tingle on my finger the other day when i was pushing a sucker onto the glass would that not harm the fish aswell though

 

hi everybody thanks for all the info it seems i have had copper in the tank at some point can anybody help me
is there any sort of treatment that i can put in my tank to get rid of the copper ive done a test but it is showing 0
but ive been told that even a trace will kill my inverts please can anybody help

 

You can run copper absorbing agents. Try this stuff, it workks really well. It got rid of the copper that was in my 150G tank.
Seachem CupriSorb I used 1 liter.

 

Copper may be the answer but I am leaning toward total shock going from LFS to your water meaning.....what Mag, Calc, PH, SG and Alk levels were the inverts kept in at the LFS. Many aquarists never bother to ask all the key questions and find out all of the parameters the LFS has compared to what you have. SG, Alk and PH are the big three when it comes to acclimating.