hmm... this make me have questions..I want to help you be successful and share what some showed me back on the east coast. Seems that your making dip and then putting the corals in the dip made from your tank water..But I am not sure so I will share this. If you are you could be shocking the corals from a quick water parameter change.
To help prevent total shock to corals, keep the corals in the water they came with. this 3 /4 or 5 container method your choice. I like to use plastic tubberware stuff and put it on our white counter so I can see the critters die. You could also use a white container. Key here is to be able to see and use a turkey baster. If you keep the frag on the plug it came with important to use the baster to get the dip in and under any crevice. Perfect spot for critters to hide. (me I like to take them off the plug if coral growth is not on the plug or get frags not vet been glued yet.
1, Keep corals in as much of original water they can with to start (container 1)
2.Make dip using some of the water the corals came with to help prevent any stress/shock to the corals. Plus your gonna throw away this water so better to throw away this water then your tank water. (container 2) and then move coral (corals) into container 2. Now if all the corals fit into container 2 then you can pour more original water from container 1 into container 2 to make sure they are covered. Let them sit per directions of dip. I use Red Sea Dip X. One bottle makes a lot of dip and for me, I get great results.
Here is where your choice comes with additional containers.
3. (Container 3)Using original water (not from dip container) move corals to this and slowly add your tank water over time, say 30 minutes or more. Then move to tank.
OR additional containers steps.
4. Once this is done I like to use tank water with Brightwell Restore to help the corals survive.(container 4)
5. container with tank water for a rinse prior to going into tank.
Hope this helps...
