Shrimps dying

[keitarosan]

Everything seem to be fine then all of a sudden they started dying 1x1. The tank has CRS and RCS. Help!!!!

Nitrate - 20
Nitrite - 0
Ph - 6.0
Kh - 0
Gh - 30

My CRS is down to 3 from 7 in just 2 days. RCS is more hardy but I've seen 2 dead in a week. Water params above are consistent during those times. I dose TA amazon elements, iron and excel very minimal. Last night I fed them and their appetite seem to be reduced as well. They left the food almost untouched but I've seen them swarm on it last night. Looks like they left it after a few bites. I fed them shirakura shrimp food.

[ilam]

amadeo, is your GH 3 or 30?

[rescuepenguin]

How often do you vacuum the substrate? I have noticed that when I get lazy with the vacuums and water changes my shrimp population decreases.

[Tarobot]

Im havin the issue recently with shirakura food as well. I cant tell if im overfeedin because the amanos drag the food n dissappears somewhere. My ph is 6 gh 6 kh
4~5

[effox]

What is the size of your tank, could temperature fluctuations be the cause? That happened last year with my shrimp population.

[Tarobot]

Thats very likely my 5g went up to 82f from 79 this week. I uplug the heater durin the day.

[Kei]

dd u feed/do any thing different in the last 7 days? i lost 10 shrimp in 1 week as well as all the berried. because i feed them seaweed.

i changed 25% - 40% every 2ed day for 1 week straight. then did 2 gravel vacuums. they seem fine now.

[Tarobot]

I lost a berried one last week as well and ill randomly see half a dead shrimp but im afraid to gravel vac cause there are lots of babies. Maybe ill try changin water more often. My guess is that the big shirakura pieces take too long to eat and it fouls up the water.

[rescuepenguin]

I lost a berried one last week as well and ill randomly see half a dead shrimp but im afraid to gravel vac cause there are lots of babies. Maybe ill try changin water more often. My guess is that the big shirakura pieces take too long to eat and it fouls up the water.

based my my experience with my Yellows, and the paranoia I have over losing my colony of over 100, I would still vacuum and do your best to avoid the babies, then do your best to get the shrimplets out of the bucket after the vacuum. In my case I could not access half of the 40 gal tank. I had plants and stuff decay back there. All of a sudden all the shrimp and 6 dwarf corys including Hastatus, died over a period of 1 week.

[charles]

I am not a shrimp person. Patrick or Frank or CRS would know more. Isn't ph6 a bit low for shrimp?