Well I think they died during molting. Two have a broken spot in their back where it looks like they were trying to come out.
I'm not sure if this is because they died while trying to molt or if it happened after they had died.
I started with 12(adults?.. about 3/4th of an inch long), down to 8. They also came with 4 babies which have not died and are growing. I've only had them for about a week and I bought them the same day they were available at the lfs. I would have waited but they tend to sell out the same day they arrive so there wasn't much of an option there.
Temp: pretty constant 79, may go down to 78 and may go as high as 81 during the day.
3 tanks, one bedroom 5/10/20L 7/22/15
^my journal, at the moment there is much more moss and the plants are re-arranged a bit but the hardware is the same.
Tank is "medium" planted.
I am NOT using co2.
I have not done a water change on the tank yet since I've only had them for about a week. Water change is tomorrow.
They were acclimated like so: 15min floating adjusting the temp, added a little water, waited 15min, added a little more water, waited 15min, more water, 15min, then added them to the tank using a net carefully.
After being in the tank for 4 days, one died, the next day 3 died.
There have been about 3 molts laying around in tank so some of them are successfully molting. I also have 3 amanos in another tank using the same declorinator(prime) and same water from our tap for 4 months and they are super healthy and berried often(biggest ones I have seen
). So I doubt copper is the killer.
Their bodies are in tact and have no missing appendages, they are in a community tank with ember tetra and galaxy rasboras(celestial pearl danios). I see no signs of harassment.
I have not actually seen them dying but I made a couple observations. One was hiding under the moss for a long time acting sluggish, next day I found a dead one under the moss in a similar area to where that one was hiding.
Another one was at the surface of the water hanging on the side of the tank but I figured that was normal because my amano usually do that after molting(I guess staying in a safe spot as their shells fully harden).
I cannot say that the shrimp doing those things were the ones that actually died though.
The first shrimp was found in a curled position. The other three look as if they just stopped moving(one was under the moss in a normal position, one latched onto anubias and the third on its side in the open)
They seem to have died during the day time(I found one that was very red compared to the others.. they were more clear and milky looking). I assume they lose color the longer they are dead.. I have read that ph swings at night while the plants are "sleeping" can lead to the shrimp dying. I'm not sure if it causes immediate death or just harms them a lot. I will try testing the ph in the morning before the lights go on to see if it remains the same.
I'm feeding them algae wafers I got at my lfs and they are probably getting some of the fish flakes. Checked both for copper.
I've tried to do research online but I can't seem to find an answer that seems logical and fits my situation.
To sum it up:
I don't think its copper
I don't think its temp
I don't think its water quality
I don't think its the filtration
What I don't know:
What a shrimp that's molting and dead looks like(never seen one other than the ones I have)
I do not have a copper test kit
I do not have a water hardness test kit
If I just got a bad batch?
Its either a bad batch of shrimp or maybe theres not enough minerals in the water for the shrimp to form a strong enough shell? Maybe theres very small ammonia spikes(undetectable?) killing them?
Maybe the water conditions in their previous tank were much different and they are adjusting(or should I say dying?).
I was thinking about moving the population the 10g where the amanos are but the ph is 7.6 in that tank and I don't want to risk more stress on them if they are already ill.
The remaining shrimp are actively swimming around and eating as normal, just like the others which seemed to have suddenly died.
Maybe I'm missing something, any advice or thoughts would be greatly appreciated. I just want some happy shrimp
Well It seems that adding coral bones to the filter raised the ph and stabilized the kh and gh enough to maintain a healthy population. I also stopped feeding them and they seem to be fine just eating algae/moss/biofilm.
Had berried shrimp and now have babies. Started with 12 adults and 4 babies. 11/12 adults died and 4/4 babies lived to reach adulthood and have now produced at least 3 little guys(hard to tell I've got so much moss in there..)
Their home! :P