Aquarium experts of the fediverse we need your help. We have a 60L tank with plants & rocks, only a month old, fully cycled. Got 8 minnows 2 wks ago, all very active and happy. Got home today to find two dead, one sick and one MIA. The others look ok to me. They all seemed absolulely fine at lunchtime.
A few shrimp have quietly died over the last few days and I've been wondering why. The snails all seem completely fine. There's a spray bar and a bubbler, so there should be plenty of oxygen. We've not been sure how much to feed them, and although they feed at the surface they don't catch everything before it reaches the bottom (I assume that's feeding the shrimp). But ammonia has been zero throughout - I've been testing very regularly.
Ammonia 0, nitrite 0.2, nitrate 30. Help! 🐟
@helenczerski
I'm not an expert and my experience is quite a long time ago now, but the questions that come to mind are: has the temperature been okay? Has anything been sprayed in the air, like air freshener or cleaning products? Has anything new entered the tank?
I would be very surprised if it was a buildup of levels because it's too sudden.