Today I checked my Opae`ula habitat & there was 7-8 of them. As in my blog before this one don't feed it to much or else your Opae`ulas & their habitat will die. One thing that you can learn is they change color to show their feelings. Also, a tip that you could use is use a tooth pick to grab the food and don't dip the tooth pick into the water. Thank you for reading this.