HOB Fuge + Chaeto questions


New member
I just ordered my HOB CPR AquaFuge2 Small 13" W/ CPR Light.

I will be adding LR rubble, live sand (maybe) and chaeto.

This set-up only holds 2.5 gallons of water so I'm thinking of starting off with 1/4 of chaeto.

Question 1 - Do I need to prune it initially to get it growing and absorbing nutrients?

Question 2 - Does the light have to be on 24x7? I was thinking of putting it on a light cycle. If light cycle is the way, how many hours a day?