Hey guys! Recently I purchased 4 Otocinclus for my 24 gal nano tank because they looked cute and they would help with my diatom problem. Well it's been a day or two and I can saftly say the had eaten through a lot of it. How can I tell if they are starving because right now they just cling to the walls,glass,and driftwood and stay there for a while. They sometimes even stay on the floor of the tank. But I've heard that they eat zucchini and cucumber so I bought those today. How do I feed them the zucchini I tried this last night I weighed it down with a pebble and left it over night, but it seems like they haven't eaten it. Can someone help me how to blanch and can someone tell me how long does it take to eat the cucumber/zucchini? And final question how can I tell if they are starving? They look full right now, they have big bellies. Sorry for the noob questions everybody these fish just look so cool! Oh and also when I was at my LFS they said that they got these catfish from a local breeder so that's pretty cool! Thanks!