1-2 cuc per gallon. But it is important that you have enough for them to eat.
My suggestion before adding any more fish or anything else is to get your rock scape in order that way when you do introduce a fish it will find a comfortable place and not have to worry about moving it around and stressing it out
Cuc is Clean Up Crew
Any type of goby is going to find a burrow under a rock usually so I would avoid getting anything of that nature until you get your rockscape squared away. But other than that maybe introduce one fish that is a “swimmer”.
Bottled bacteria won’t hurt but the sooner the better. It really comes down to letting your tank cycle and go through the algae blooms. With a tank your size depending on your filtration and the amount of rock has a lot to do with it as well. It should take anywhere from 3 to 6 weeks to cycle. Every tank is different. You can add fish before it cycles but make sure they are rather hearty fish. You do want to keep her eye on your anemone because they do not like drastic changes in water. And during the cycling process the water changes a lot that’s why I think people were suggesting you take the anemone out of the tank because the rise and fall of levels will greatly affect it.
