Newbie in confusion

Hello everyone
I got soo many question in mind i hope u guys could give me some enlightment , i really dont want to messed this up , as i really love doing this hobby , it would break my heart if i failed at some stage , invested lotsa money and time in it as well
Im a newbie in this hobby , but currentlly obssesed with it
I got 100 gallon tanks , white sand with live rocks and 120cm led light , with a sump below the main tank
I turned on the skimmer m biopellets , and rowaphost from the very first day of cycling as directed by the lfs , oh and i got bacteria starter added as well
Now im on my10th day of cycling , i got algae bloom starting , i read lotsa information in the internet by the more i read the more confused i am , theres so many pros n cons n suggestion
I must admit my sins.... , i add 2 clown fish on my 5th day , its still doing well and eating until now , but currentlly hiding alot in the live rocks ( is this normal?)
And i add 2 cleaners shirmp
And on my 9th day i add 3 turbo , and uhm...2 small mushroom ( white milky transparent color with little white bumps all over , and a green like of glow in the dark mushroom) , and a rounded coral green in colour that will become big with lotsa flower brocoli like (sorry i didnt really know the name..)
And here is my question

Currentlly in algae bloom stage , got green n brownish like algae , red slime ish algae attached to the live rocks , and kinda greenish algae with little cute bubble
, i read it will dissapear in time? If so am anywhere near the finished cycling process? Pr if not anyway to get rid of them? My tank is in its ugly state now

Is the coral will be ok during this algae bloom?
My temperature raed 30is celcious degree during the day , but if i turn the aircon on the whole day it can go to 27,5 is celcious , is it too hot fo the coral?

And if i turn my aircon on the water evaporate soo fast so i have to add fresh water every day to the sump chamber in order for the water pump to work properlly, is that ok?

I really want to put like a pair of fish more and corals , but i have to know if its ok to to do it ..i hope to get some opinion on this
Oh and so far all the coral is doing soo well and blooming properlly its has only been their 3rd days tough

One last thing at night i usually see the conditon of the tank n seeing in with a flash light , i saw 3 crab with a colour the looks like the live rocks , 2 of them is small , but theres 1 that quite big with purple ish claw ... I want to kow is it ok to leave them there? Or should i take it out ...im paranoid that it will become a pest , eating my coral or bothering my fish.., theres 1snail hitch hike and 2 muscles hict hike as well , so far i saw the crab is eating the algae (or the live rock..not to sure..)


I never tested my water with a test kid tough..is there anyway to know the cycling process without those? Is the kit expensive? Cause i ask the lfs , he said i dont really needed it , i trust him tough he is not a money grabber type

Please please please gimme some enlightmen ,and thank you in advanced

I reallly wanna make my tank healthy

 

Oh and i dont use a power head yet , i only rely on the waterpump so far , do i need a wave maker( power head? Its the same right?) , if yes for a 120cmx60x60 tanks how many will i need it ,with how much power and where to put? Thank youu sooo much

 

First of all slow down.... You have to add bio pellets slowly. Like a 2 table spoons a week. Are you using rodi water? If not that should be your next purchase.

 

Buy a test kit. You don't know what your tank is doing unless you test it. Testing is how you learn. If you don't you will continue to have problems.