If you move them you must keep the eggs aerated gently with a airstone or fungus will set in. A simple 5 or 10 gallon tank works fine for a larvae tank. Add a heater and an airstone and you're set. No real biological filtration is usually provided. I have used live rock, but there's always a chance of bacteria infection coming from it.
Ammonia needs to be monitored.
Adding Amquel or its equivalent when traces show up have been beneficial. Having a bare bottom makes it easier to clean. You may need to leave a light on the first few until the larvae develop their hunting skills. The first 10 days are the most crucial. This is the period when the greatest number are lost.