It's alright, you're always welcome to ask questions.
First of all. Did you have CUCs at all in your tank? the clean up crew such as snails or hermit crabs. You probably want to have that. Nassarius snails always sift the sands, so it keeps the sands clean and you can also get astrea or turbo or margarita snails, they usually hang on the glass tank eating off the algae
and when they are done, you can use mag cleaner to make the glass a little cleaner. If you don't have any CUC by now, you most probably want to get some. What size is ur tank?
My clown used to be like urs, hanging around the heater all the time, but I think it's because just like anemone to a clown, your clown feels like the heater is his safe place. My firefish was also like urs, stayed in their holes, but I think you need to check your powerhead. The issue with mine last time was that my PH was too strong, so I changed to a lower gph
and now they all swim around nicely.
I hope I answers some questions for u.