Baby Yellow Tiger Datnoids

Just bought/rescued 3 yellow tigers from a little fish store. This is the first time I've ever owned any. They are about 1-1.5" long. Already shown a little bit of personality by begging for food by rubbing their nose on the aquarium glass. Can someone give me any tips?

No suggestions? I put 2 tbsp. of instant ocean salt in per 5 gallons of H20. Ph is about 7.4 from the tap. All they will eat so far are tiny earthworms I dug in the yard and some tiny gut loaded rosy red minnows from a quarantine tank. Will driftwood soften the water to much? Aquarium has coral sand/regular sand mixed for substrate.

The few things I've read about them, said they were one of the species that needed salt. The only reason for digging in the leaves for the earthworms is I can get tiny ones. I'm kinda wary about using farm raised worms , because I don't know the background on them. May have chemicals or something else I don't want to feed the little guys. Probably just paranoia though. I'll post some pictures tomorrow morning. I haven't been using the light because it freaks them out so bad. The pictures of them will probably look like black and white instead of color because they are scared. Any info would be great on them. They are indeed a trio of 1"-1.25" NGT though.

I am going to add some hiding spots soon. Just wanted them a bit less skittish before I add plants/rocks. They are rubbing on the glass when I walk into the room now. I apologize about the bad picture quality. They hide when I attempted to photograph them. The light had been off a while when I took the pics. That's one reason why they are lacking in the color department. Thanks.