My betta has recently died :cry: and I will be getting a new one soon. I have a good 15 litre (3 gallon) tank with a heater and filter. Would it become overstocked if a bought a few neon tetras with my new betta? How many tetras should you have in a school? Is it much harder to keep to different...

I'm worried that my tank may be overstocked and causing the aggressive behavior exhibited by my larger ghost shrimp. I have 20 shrimp and 1 male betta in a 10 gallon heavily planted tank ( 2 1/2 cups of Java moss, 1 marimo ball, 10 anubias, 7 water wisteria, some duckweed and frog bit ). They...

I have a 20 gallon long tank and last week I got 6 cories, 6 rasboras, and my betta to go in it. I tested the ammonia everyday and it is at 0, but today I tested the nitrates and they were close to 90! I'm going to do a major water change today to bring them down. Before I added the fish the...

My tank is a 10 gallon divided tank. I've had it set up for three months. When I checked the ammonia yesterday, I was stunned: it was yellow. I've never checked it before without it being green, even after full water changes. The PH, general hardness, KO3, etc, were perfect. Otherwise...