Hi all,
Just to say I haven't kept Zebs (or any other Hypancistrus sp.), but I wouldn't see any risk in feeding Grindal worms, I feed them to all the fish. Personally I haven't had any problem with microworms either, but I'm not sure whether the Zeb fry will eat them.
I also don't agree with all of
I have never feed my zebras, any type of worms nor frozen products. As long as you give them a variety of the dried food and clean water, they will be happy.
I'm a fanatical water changer, and I have planted tanks with lots of biological filtration, so I agree about the water, and dried food is also really good now, but for conditioning fish I'd really recommend red worms (Lumbricus rubellus), Grindal Worms and White Worms to everybody, they are really easy to culture, (and so are wingless Fruit Flies, Daphnia and Mosquito larvae) and they are close to the natural food of the fish. In the winter when live food was scarce (other than the worm cultures), as soon as the ice thawed, I got a good scoop of water and weed out of the garden pond and I fed the Glass-worms, Asellus, Cyclops and swimming May-fly nymphs to the fish, and they went mad for them.
I tend to feed a mix of foods, Astax red crumb, prawn/peas mix, algal wafers, live food and some veg (even for the more carnivorous fish)
People keep on saying rain-water and live food are risky, and maybe I've been lucky, but I'd much rather use them than tap water and dried (or frozen) food all the time.
cheers Darrel