u/Dry_Cantaloupe136

this is our 25l tank, it has 5 (was 6) neon tetras and some cherry shrimp. it will be a year old in september and everything has been doing really really well until the last couple of weeks. everything seems to be dying and quite quickly. we thought since we had a lot of baby shrimp that it was just nature doing its think but we had a fish die recently. we don’t really do much maintenance on it apart from cutting the plants and cleaning the glass as the water seems to be perfectly fine, i have been testing it every now and then and it hasn’t changed from when it was doing great. i just want some advice on what to do or what could be happening. thanks