platy fry- NEED ADVICE!!

i have a little tank with 7 platyfry, had them for maybe 1 month and they're all growing healthy and steadily. One of the females gave birth again and there are 2 (or maybe 1 now ) in the tank. i've tryed to catch them but they were too fast. ive heard that its ok to keep fry in the tank with their parents as long as you have some live plants there to provide a hiding place. the hiding spot isnt a problem for me, they hav there own little seperate corner in the tank.The problem is that when i try to throw them abit of food down there,the adult fish eat it all up before it even reaches the bottom. Occasionally i get abit of food down there but only a small amount.Can they just survive on the algae or whatever there?or will i have to catch them?
any advice would be greatly appreciated, thanks.

I had the same problem and I came up with two solutions...
One is to use Algae tabs: break a small piece off the tab and get it as close to them as you can. The only problem with this is that they can cause an algae problem in your tank if you use more than they can eat and even though they can live on it quite well, they need more than algae.
Two is to use Shrimp pellets. I use Wardleys and they soften up quickly. But make sure you only use a piece of it as well. Just what the fry will eat.
It is a good idea to feed the parents at the same time as you feed the fry. They will be too distracted to bother the fry food.
This is only from my trial and error so use it as you will. I was told to buy Liquifry or baby brine shrimp but have never tried it.
I found that with my Molly and Platy fry they prefer the Algae wafers and grew quite rappidly once I started using them, but each fish is different so like I said...trial and error!

Platy fry usually prefer to hang around the top in some bushy plants. A large bunch of floating plants will do a fair job of protecting them and their food source. As soon as they're born, platy fry can eat baby brine shrimp. They don't need liquid food. You can buy frozen brine shrimp, both baby and mature, from most aquarium shops; just be sure to thaw it before feeding it. Adult platies like adult brine shrimp. The platies in my aquariums get flake food in the morning and, usually, brine shrimp in the evening. They eat all of the food in a couple of minutes, and the aquariums get regular, partial water changes.

thanks for the advice, i tried to throw tiny pieces of veg pellet down there and it worked!

I used liquifry for all my babies, and it works great, because it sinks fast and straight away.
my main female platy gave birth to 65 babies, but they were all too early, and they all died

Try liquifry!!!!!!!!!!!

Platy fry are normally expelled with their yolk sacks used up, and they're usually large enough to eat baby brine shrimp and small pieces of flake food. Sometimes, moving a pregnant Platy to a new aquarium will cause a bit of shock and make her deliver early. Netting and rapid changes in water parameters can also produce shock. It's a good idea to have plenty of bushy, floating plants for mum and the kids to use as a refuge.

The liquid foods are intended more for the very small fry of some egg laying species. Of course, you should try to keep any uneaten food from accumulating.

yo can give them baby worms