I need suggestions, please.

[Alberta_madcow]

Hello world!!

[FishyFishy!]

Nice! They are fantastic grazers and they look awesome. Good pick.

[Alberta_madcow]

Already bonded and not even in the tank yet.

[Alberta_madcow]

Small update nano is going strong.halloween hermit,pistol shrimp and goby all still alive and well lol. Been doing 10-20% water changes every 7 days things seem to be happy!!

[Alberta_madcow]

Halloween hermit crab moulted

[Alberta_madcow]

When using hang on back filter how often do you change the replaceable filter? the one with carbon stuff in it? I know not to touch the bio filter.

[intarsiabox]

The carbon has a very limited effective lifespan. After a week it does very little but still works to some degree for another couple of weeks. I would personally change the filter every 3-4 weeks but rinse it out with each water change. If I understand you correctly you are using the type of filter pad that has the carbon and filter pad as a single disposable unit. If you have one with a sponge and carbon separate then just replace the carbon and rinse out the sponge as the sponge will last a very long time.

[Alberta_madcow]

Thank you!!

[reefy]

spike-fin goby is the best goby for a "stablished" nano IMO

[strider]

Look into clown gobies and neon gobies too.
Small tanks get tons of algae so might want to get an spiny star Astraea to clean the glass.
If u have good lights than a rock flower Anenome may do well too.