Francis,
Its FINE if the slainity goes down one point. I think at this time, we need to get your lighting picked out for your coral. Its OK if the anenome gets big, it probably has eaten or is "stretching" for the light. They do that, so its OK. Its when it "shrinks" inside out, you got a problem. I would leave the anenome at the top closer to the light, but it's your choice. The lights you have aren't strong enough for them.... After you get your new lights, he might just "walk" around the tank and finds a spot HE like. Thats natural too. ALSO, BE CAREFUL, ANENOMES CAN STING YOU! and it HURTS!
As for your water, you can add a bit more salt to the BUCKET if you want, but I think it's fine. Fill to the top and let your tank sit. I don't know how fast you will get evaporation, DId you have a canopy on your tank? Sometimes without a canopy it evaporates faster. JUST REMEMBER, to add FRESH (NON SALT) treated water to top off when the water goes down. The reason for this is; when water evaporates, the salt does not.. so as the water evap's the salinity will go up a bit, so adding fresh NON salt water will keep your salinity the same.
Now, You need to decide what kind of maintenance schedule your going to keep for your tank. Everyday, when you turn the lights on, check the temp, and a quick ck to see that everything is working properly, (powerhead's, lights, filter, skimmer etc.
I do weekly water changes and water tests (PH, calcium, alk, ck salinity) And monthly BIG maintenance.. meaning scrubbing the insides of the powerheads and the intakes and stuff, clean the glass canopys under lights.. ect...All that fun stuff!! LOL Some people only do ONE BIG water change per month, and thats fine too.. you do whats good for you and your tank. =-)
The reason I do weekly H2O changes is because my NITRATES tend to run on the high side, I find it keeps my water perameters in check. In the begining I kept a small notebook and wrote down all my readings and wrote down everytime I DID anything in the tank, so I could refer back to it if something died or wierd happened. It's fun to look back an see the progress too.
Hope this helps, Have FUN!! Don't stress out yet! LETS GET YOU SOME LIGHTS ON YOUR TANK!!
:cheer: Kim