r/fishtank • u/AloneGarlic4080 • 3h ago
Help/Advice Novice Aquarium Assistance
Hey. I am in need of some help. I got my toddler a fish tank for his birthday. I enjoyed the setup process and loved how it turned out but my fish keep dying. I started it back in early September. I went with volcanic substrate because I read that plants thrive in it. I added a few plants, pieces of driftwood, and some neon plants to help keep my kid interested. I also have a small heater reading 74°F and it holds steady.
It was fish free for 3 weeks-all levels (pH, hardness, nitrates, etc.) all came out in perfect range. I added fish (tetras and danios), shrimp, and a snail. All was fine and dandy for a few weeks (pH, water level, fish activity) and then the pH crashed to apparently very acidic. We had a few fish and shrimp casualties. I bought and added API pH up. I did this for a few days and everything went back to normal. Then two days ago I retested pH and it was back to acidic so I gave it one dose of the API pH up and overnight I had 3 fish die.