early warning signs are the nitrates spiking.
are there snails in the tank?
how is the tank filtered?
running an airstone?
have you dosed calcium in the last 30 days?
what are the foods being fed? frequency and size of feedings?
any snails in the tank?
any molts seen in the last month?
Amanos or fish or any other tank mates in the tank?
how long have you had these guys in the tank?
just so you know, i use straight NYC tap + Prime and about 16 drips of fluval shrimp supplement or 19 drips of shirakura ca+. I dose borneo wild Vita, shield and stout weekly....
Snails - yes, 3 decent size nerites.
Filter is eheim 2076 with original media.
No air stone - lots of water agitation, I mean lots, noisy
I have not dosed Calcium, will look into that actually.
For food, I've been adding Indian Almond Leads (otos love them more), barley pellets (2-3 twice a week), Hikari Algae Wafers for otos that shrimp love, and Shirakura algae vafers for shrimp that otos love. I was adding 1-2 wafers twice a weel but slowed down recently as they are not eating it all.
No other tank mates, 3 netires, 5 otos, 3 CPD's. No other shrimp.
They've been int he tank for about 5-6 weeks. Issues only started a week and a half ago, after I added nerites, could that be it?