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Can you tellme some advices on what and how feeding Pseudancistrus asurini L67
they stay mainly on glass or rocks where flow is high (not near surface) and not go to bottom

They will eat from the bottom and are omnivores, certainly should eat the majority of types of prepared sinking foods. Can you tell us more about the tank, filtration etc.

Jools

I put 3 of them a week ago in 150cm tank, two external filter and 10000 l/h pump
water parameter ok (not new tank)
are abot 8cm, in tank there some smaller ancistrus triradiatus and 3 slightly bigger squaliforma emarginata

i feed pleco tablet and vegetables or fruit and small amount of cichlid granules, try even piece of fish
everything are eaten but cant see directly doing so only the pseudancistrus

Just new, be patient I'd say. Maybe also post a pic of the tank.

Jools

If you have a look at the mouth of a Pseudancistrus you'll find many small teeth. Quite short and thin, but in huge numbers. If possible try to make a mix of dry food, put some water in the mix and spread it on a flat stone, then leave it until its dry. At feeding time you simply put the stone with the dried food on top in your tank. Of course it will get wet immediately and start to become loose, but for plecos with the feeding behaviour of Pseudancistrus, this is perfect since its easy to scrape off the stone. Furthermore you will be able to tell if they accepted it or not. In contrast, tablets and co get flushed away into a silent corner. Pastes like Repashy serve very well for this.

And most important: What Jools said, be patient.

Supposedly garlic is an appetite stimulant which may attract the pseudas to the food. Either use garlic extract or rub cut garlic on the food item/wafer.

thanks, especially Daniel I will try your method
the tank is mainly rocky, i post a picture

I have 2 pics of the fishes, now they go on the bottom