Hi all,
I always (24/7) have vegetables (cucumber, courgette, cooked carrot, pepper, sweet potato or blanched french bean) available for both shrimps and
Otocinclus. I fasten them to a vertical Bamboo cane (with an elastic band) and that way the
Otocinclus will find them, they like the veg when it is very soft (I believe they mainly eat diatoms from the biofilm rather than more visible algae). I usually stud the cucumber or courgette with dry food, once the fish are eating confidently from it, and they very occasionally get a prawn as well.
Otocinclus are quite sensitive fish, and I wouldn't keep them in a small tank unless you were confident about your water management skills. Shrimps,
Corydoras pygmaeus and
Otocinclus are a very good mix for a ~50 litre planted tank. I've had my oldest 3
Otocinclus for about 4 years now, so they are potentially long lived for a small fish.
If you have dead leaves in the tank, both shrimps and
Otocinclus will graze on them. I have some Magnolia leaves in the
Apistogramma tank (so no shrimps), the evergreen
M. grandiflora, and the
Otocinclus have skeletonized them completely over Christmas.
There was a thread about this leaf feeding on Planet Catfish recently <
http://www.planetcatfish.com/forum/viewtopic.php?f=5&t=34911>.
cheers Darrel