This is quite an aggressive Syno and can grow quite
large. Its certainly not in the same league as S.
schall but never the less still a bit of a 'grump' when
housed, especially with its own kind. A better
environment for it would be with large Cichlids and
even a Lake Tanganyika tank setup would do fine as
S. acanthomias is very tolerant of different
water conditions and so a higher p.H. factor would
not faze it too much. If housed with other Synodontis
I would give it a large tank (4ft or above) and give
them plenty of shelter from each other and then monitor
them to see how they will interact with one another.
I find it to be a trial and error in keeping Syno's
together, some get on fine, while others will not
tolerate a certain species/individual, so watch for
a few days when introducing, and have another tank
ready if you are spotting any problems. Diet:
Will eat any foods given to your other tank inhabitants
and will also take flakefood that floats to the botom.
Feed also tablet foods and frozen bloodworm which
they find a favourite. Some form of vegetable content
would also help to keep this "Syno" in tiptop
condition. Etymology: acanthus, thorn;
omias, perhaps from the Greek omos, shoulder or humerus,
referring to humeral process armed with spines (name
may also refer to S. omias, to which this
species had incorrectly been identified). Remarks:
A good identification factor is the tip of the humeral
process being adorned with spines which makes it look
ragged looking. The last thumbnail image shows this
trait. This is a good identifier for this species.