If Ammonia & nitrites are HIGH, you will need to do a partial water change to bring them down. Keep asking about any concerns...we like to
The small HOB (hang on back) filter will be just fine for what you are doing!
What you are needing to do with a small piece of matured live rock is introducing some good established bacteria to your little tank. The good bacteria eats up the ammonia and nitrites and reproduces to stabilize your tank.
You do NOT want to be over feeding or adding an additional source of ammonia with life (the hermit) in your tank.
You may or may not have stumbled into an addictive hobby
Only time will tell
The small HOB (hang on back) filter will be just fine for what you are doing!
What you are needing to do with a small piece of matured live rock is introducing some good established bacteria to your little tank. The good bacteria eats up the ammonia and nitrites and reproduces to stabilize your tank.
You do NOT want to be over feeding or adding an additional source of ammonia with life (the hermit) in your tank.
You may or may not have stumbled into an addictive hobby
Only time will tell