Hypro with Prazi safe?

[Daniel400G]

hello
I'm having a massive ice outbreak.
For 1 week now
Fallow tank
Salt level is at .009 for 2 days for the last 2 days.
Powder blue is on its side barely moving.

or maybe this is velvet?

All 15 fish went in 3 weeks ago.
14 through strick qt.
Crosshatch trigger 1 wk qt and looked good.
So I put all fish in the tank at the same time.

All fish are eating but half look sick, ice or velvet.

Going to keep up the hypo but also want to put prazipro.
Is this safe with hypo?

No copper because this will be a reef tank and rock structure is complete.
Tank size is 400g

Please let me know your thoughts.

Thx

 

[Big G]

Can you post a picture of your fish?

Hypo doesn't work on Velvet.

 

[Daniel400G]

Pictures

 

[Daniel400G]

More pictures

 

[Daniel400G]

Pictures

Powder blue in the net to protect him from other tangs

Gem looks really bad

Achilles starting to get bad

Achilles hybrid looks bad.

 

[Daniel400G]

5 anthias missing
1 clown fish missing

 

[Daniel400G]

Anyone have suggestions?