Those are some of the easier to to keep animals. They're fairly hardy and the big plus is they are all avaiable captive bred. Shrooms and button polyps (zoanthids) grow very quickly once established.
all right... I am pretty new at this myself but I will comment.
Clowns: Try to get tank raised. These are typically very well adapted to a captive environment already and should eat immediately. I find them to be easy to keep, hardy, and fun to watch. They can be quite a pig come feeding time. Mine has taken up in a BTA and rarely leaves his home. He is very protective and has no problems coming to the far side of the tank to bite my hand as I work. Also, tank raised are a bit more resistant to disease and captive conditions. Pairs tend to breed fairly readily if provided with a suitable habitat. Not much else to say.
Mushrooms: Very easy to keep. Resiliant to almost anything. They can easily overgrow a tank so you might seperate these on an island of rockwork where they won't overrun everything else. They may still do it anyway. They reproduce like mad. I do target feed mine and they seem to appreciate it. I really like ricordia and they tend to have a bit slower growth rate. Also, the non-green colors tend to flouresce very well under actinic lighting but require brighter lights than regular shrooms.
Both of these have been written about like mad and I am sure that you can easily find better info out there. Good luck and do try the books that were suggested. Everyone here speaks from their experiences and is trying to point you in the right direction. I'm not coming down on you at all, but people will be more likely to respond to less general questions that show that you have done some research on your own.
On edit: "What are shrooms?" Look up coralimorphans. Should give you lot's o' info.
what kind of lighting shold i use if i want to keep these animals and maybe one day go on to harder things? metal halides mostly, i guess, how many watts and can u explain a little more about the lighting subject to me? um actinics im still confused on, r they just a supplemental light or r they just used for dawn and sunset type use? also what different types of bta's r there? jus a little more to know, i guess.
OK, actinics are flourescent bulbs that emit in the 420nm spectrum. Do a search on lighting and it will be explained. If you want a clam, metal halides are a must. I have a 75 gallon with 2 400 watt halides combined with 330 watts of pc actinic. General rule is 1 metal halide bulb per 2 feet of tank length. Hint: go with halide from the start. You will end up paying more later if you don't. Do it from the get go. zoanthids and shrooms can be kept under most any light.
GO READ A BOOK! seriously, either search this board or read a book all this information your requesting is not getting answered because it would really be best if you just take the time to read a beginners book. It will answer all of your questions.
T.squomosa and T.deresa are amongst the easier to keep species that are readily available. Keep in mind they get pretty big. As for telling them apart, you really need a good book to give you the info you're looking for. Daniel Knop's Giant Clams is recommended.
Lets put it this way...most reefers on here will suggest minimum size tank for any tang is gonna be 75Gal...(thats a minimum size) if you want those big fish, you should consider a fairly large tank anywheres between 90-120gal possibly larger..maybe ask Len one of the site admins..he has a 120 gal tank over a decade old..he might be able to more adequately help you on the larger species of fish... HTH
I think people want to make your own decisions thaats why they are telling you to read a book.
DO IT YOURSELF!!! dont ask us our opinions and copy what someone else has already done do your own thing and then ask us if you need help along to way.
Brandon, yes I had the book and it is a good read. If you live in a sizable city, check out the local libraries. A lot of them have a surprising amount of reefkeeping books.
What's best is that you focus your questions. Start a new thread for the questions you have. I think what's frustrating some folks is the haphazzard string of questions.
I also need to remind everyone that they started out as new reefkeepers too I know sometimes the line of questionings may get tiring or the way they're asked may be frustrating, but it's best to not respond if you don't have something helpful/constructive to say. We're all here for the same reasons
You seem to be concerned with what's best and what's popular. Go with what you like so that this hobby can sustain your interest. The minute you lose interest, you're tank begins to suffer.
Be wary of ANY advice you get, and ALWAYS do your own research. The worst thing is finding out the blind was leading the blind.