Hi people 
Good night.
My name is Luis and im new in This "world"
So for a beginner i bought 4 days ago a 54 liters tank with filter , heater, and one air pump.
I let all turned on, all days and today i bought 5 tetra neon fish.
But i noticed their color were gone, they stay together in the bottom of the tank.
So if anyone can help pls say something
Thanks
P.s: sorry for my english
Good night.
My name is Luis and im new in This "world"
So for a beginner i bought 4 days ago a 54 liters tank with filter , heater, and one air pump.
I let all turned on, all days and today i bought 5 tetra neon fish.
But i noticed their color were gone, they stay together in the bottom of the tank.
So if anyone can help pls say something
Thanks
P.s: sorry for my english