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anyone know what this oto is.

only lable as oto arnodli in petsmart ...this are larger than the regular oto.

there seem to be a fade laterial black line with dark black spot up and down the side.

It's a fish from the macrospilus/hoppei group. I am unsure how to separate the different species in that group; even, in fact, if they can be separated.

It's definitely not arnoldi, that is the same species as in the Cat-eLog is still called .

Mike_Noren wrote:It's a fish from the macrospilus/hoppei group. I am unsure how to separate the different species in that group; even, in fact, if they can be separated.

It's definitely not arnoldi, that is the same species as in the Cat-eLog is still called

Otocinclus flexilis

.

thanks..that narrow it down a bit..

Definately a Macro.