hey all I have a 90 gallon tank with 5 danios, 5neon rainbows, a bristlenose, and added 5 big congo tetras 4 days ago. I know it is normal for new fish to hide for a while to adjust but these guys have stayed at the back of the tank behind plants and every hour one ventures out but then returns to join the school. and they havent eaten since I got them should I be concerned????
James
James