Page 1 of 1

A couple of unexpected deaths?

Posted: Mon Mar 17, 2008 7:33 pm
by lazee
To answer the above questions in order: -
1) pH = 7.5, Ammonia = 0, Nitrite = 0, Nitrate = around 10, Salinity = 1.006 SG

2) 60 gallon; 1x 1" GSP, 1 x 1.5" F8, 1 x 3.5" Silver Scat, 1 x 2.5" Mono Sebae, 2 x 2.5" Dalmation Mollies, 1 x "Bluey" Lobster, 3 x Red Crabs

3) Feed puffers every other day except when I top up the red crabs (as normally one or two are eaten upon intro) and feed remaining fish with a few flakes every day.

4) 50% Water Change 3 days ago (was currently no changes for 12 days as I ran out of salt) Disturbed the sand quite a lot as re-arranging decor at the same time.... water is still quite cloudy as a result. Also, have purchased a different marine salt from normal as my LFS has stopped stocking my usual. (apparently i was the only one that bought it)

5) Newish tank... has been fully established and running now for just over 5 months

Well I came home from work tonight to find my second, larger, bluey lobster dead with no visible signs of puffer induced death.... still had all legs and eyes. But I assumed it had just fell prey to the crabs as they were all over it when I found it. I left it in for an hour before fishing it out to let the puffers feed on it.

I have just had a last look now before going to bed and my 3" red / green scat was dead on the base of the tank. It has been perfectly fine up until now. Again, it has no visible signs of puffer induced death. I have just undertaken water tests... results as above and am puzzled as to why the sudden deaths?

Puffers (and remaining fish) appear ok, white bellies and fairly active but am a little concerned there's something I've missed. The last thing I want is the rest of my tank being dead by the time i return from work tomorrow?

Any pointers would be greatfully appreciated. :? :? :?

Re: A couple of unexpected deaths?

Posted: Mon Mar 17, 2008 8:32 pm
by crazedpuffer
A few incompatible fish.
GSP and Monos need full SW when older, while F8s and I think scats need low brackish.
I'd sort those out, it may help you quite a lot.

Re: A couple of unexpected deaths?

Posted: Mon Mar 17, 2008 10:16 pm
by Pufferpunk
What test kits are you using? Hard to believe the nitrate is so low.

Re: A couple of unexpected deaths?

Posted: Tue Mar 18, 2008 1:48 am
by lazee
@ crazedpuffer I am fully intending to 'split' the tank as the fish get older to allow the GSP live in a higher SG. I didn't know mono's needed higher SG also though. mmm :shock:

@ pufferpunk.. I'm using Nutrafin liquid test kits. Nitrate i would normally expect to find a bit higher but thought my big water change may have had something to do with the low level? I'll do a re-test tonight if it appears odd. Haven't got time just now... already late for work but needed to check if any replies.

However, an update... no more casualties this morning, :D will have to cross fingers and see if anything happens whilst I am at work

Re: A couple of unexpected deaths?

Posted: Tue Mar 18, 2008 2:50 am
by Pufferpunk
Are you sure you didn't just find the lobster's shell shed?

Re: A couple of unexpected deaths?

Posted: Tue Mar 18, 2008 4:33 am
by lazee
Nope, was def the bigeer lobster. I sat and watched the puffers eating it before I fished it out.