hiya kagal,
depending where she drops the eggs like if she drops the eggs in the middle of the tank with no covering the eggs will probally get eaten very quickly but, if she drops the eggs in the rocky or planted section of the tank they might have a chance. but, if u really want to save all the eggs you could get one of those breeding traps and she could lay in their. you would get all the eggs in the trap and when you get another tank you could move them when they hatch.but beware sometimes the stress of being moved can abort the fry

P.S keep up with the water changes especially when the fry are born since the fry give off a hormone that prohibits growth. HAPPY FISHKEEPING ;D ;D ;D ;D ;D