These are inverts hes talking about, not fish. Yes likely they will all die. Your asking for many problems down the road if you cant muster up some patience. This whole hobby is a waiting game.
Many experienced reefers understand why its best to wait, and we often express this to no end, but the advice is usually ignored.
Also expect algae if your keeping your lights on during cycle for any liveatock. One of the facts that most dont think about. Nitrates and phosphates spike considerably during a cycle. Introduce light to the equation and you have an algae cocktail. And often its a pain to get control of.
Think about what would make you get so frustrated you would quit the hobby, usually out of control algae is at the top of the list.
So let me save you money and frustration when i advise you to wait.
29g Mixed Reef, 150w 14k Phoenix MH w/ Moonlights, Reef Octopus BH1000 HOB Skimmer, Ecotech Vortech MP10es, ReefKeeper Lite (Plus), PH Probe, Temp Probe, ATO, Carbon/GFO Reactor.