Please Help, this is breaking my heart

[Captainhemo]

Hey a\ALL
I made a post a few days ago about my stressed / sick dommino damsels. Although things steted to look up for a day or two they are worse now. The larger of the two (the one which I was aking about in my other post) is now spending most of his time on his side in a hole in the live rock. He comes out at feeding or when there is a sudden movement in front fo the tank. When he soes come out he swims eraticlally now.
The smaller one sosent seem as bad, he seems to be rubbing/scratching himself up against the rocks but stills wims ok. He is also still eating well.

The fish almost look like they have specs of dust on them.
I am assumming they have got some kind of parasite. Is there anything I can do for them that is safe for the rest of the tank ( hermits, snails, live rock ? ) Normally I'd be taling to my local dealer but they are on holdidays , I feel really bad for the fish and it starting to really upset me not being able to do anything .

Nothing new has been added to the tank lately, this all just seemed to start out of the blue. They are the only 2 fish in the tank and have been doing well for about 3 or 4 weeks up until last thursday night when I first noticed something was wrong and started the other thresad (Help, Domminos not doing well)

I've also noticed the development of what aapeears to be small white spots onthe tnaks glass . Upon clser inspection these a re actuyally little animals with legs. Searching on the forums, they appear to be a type of jelly fish i read about here http://www.rshimek.com/odd_critters....Around%20Tanks
From reading the info there, it dosent seem like these would be the cuilprit


BTW, tnak is a 33 gal,
Ammonia 0
Nitrites 0
Nitrates <10ppm
PH 8.2
Salinityh 1.024
Temp is 78

The tank has about 50 lbs of reef sand, 30 lbs live rock, multiple hermits and snails, a red mushrrom, and the 2 damsels

Does anyone have any suggestions on what I can do for these ppor guys ? The larger one seems to be gettng worse, Im scared if I dont do some thing for him he's not gonna make it. My dealer isnt gonna be back for about another weekk i think