How to transfer fish to new tank

[Steve1500]

I am upgrading from a 75G to a 180G tank. In the existing tank I have 2 tangs, 2 clowns, 1 cardinal, 1 coral beauty, 1 basselet and 1 damsel.

In the new tank, I plan to add 5-6 chromis, two blennies (my current blenny decided to jump out of the tank), 1 rabbit or fox face and possibly two more cardinals if they can get along.

1) Will two blennies (lawnmower and a different type) get along in a 180?
2) If I add all the benghai cardinals at once, will they kill each other?
3) Most importantly, what is the best way to transfer....do I add all my existing fish at once and then add the new fish immediately after or add the new fish after a few weeks but over a period of time (not all at once)?

 

[Evan28395950]

The blennies will be good

 

[Oscaror]

I am upgrading from a 75G to a 180G tank. In the existing tank I have 2 tangs, 2 clowns, 1 cardinal, 1 coral beauty, 1 basselet and 1 damsel.

In the new tank, I plan to add 5-6 chromis, two blennies (my current blenny decided to jump out of the tank), 1 rabbit or fox face and possibly two more cardinals if they can get along.

1) Will two blennies (lawnmower and a different type) get along in a 180?
2) If I add all the benghai cardinals at once, will they kill each other?
3) Most importantly, what is the best way to transfer....do I add all my existing fish at once and then add the new fish immediately after or add the new fish after a few weeks but over a period of time (not all at once)?

Banggai cardinals are aggressive to eachother and other cardinals. Since your tank is a 180 I'm not sure if it may help with the aggression, but the order you add them in won't matter. If you get a mated pair they'll live together peacefully.