Got a new Mouth Almighty Cardinalfish and a Datnoid at my LFS a couple days ago; having trouble feeding both of them. Tried frozen blackworms, live crickets, frozen krill, frozen bloodworms, mysis shrimp, brine shrimp (both also frozen), and small chunks of frozen silverside. The Mouth Almighty seems interested in anything that moves, but quickly loses interest, and the Datnoid kept picking at krill chunks but ignored everything else. Both are in decent condition; the Mouth Almighty has apparently been at the LFS for quite some time and has supposedly eaten pellets, and the datnoid was a new arrival but seemed healthy and alert (albeit rather skinny). Tank is a 75 growout with a 8in Senegal Bichir, 8in P. blochii, two EBAs, and two cories of some sort. Water parameters are as follows: Nitrates: ~20, Nitrites: 0, Ammonia: 0, pH: 6.9, GH: 4, KH: ~5, and the water temperature is at ~75. Going to see if I can procure some ghost shrimp tomorrow to feed them. Any other suggestions on what to feed them? I'll attach an image of the dat and the mouth almighty below.
As for the fish ID request, I bought a mislabeled knifefish (supposedly a Banded Knifefish; Steatogenys elegans) that I have previously not ever kept; my best guess on the species is some sort of Hypopomidae; maybe Brachyhypopomus. Unfortunately, the fish is currently hiding under a large piece of driftwood and I am unable to get a good picture, although I can post an image from the LFS's shipment posts.
As for the fish ID request, I bought a mislabeled knifefish (supposedly a Banded Knifefish; Steatogenys elegans) that I have previously not ever kept; my best guess on the species is some sort of Hypopomidae; maybe Brachyhypopomus. Unfortunately, the fish is currently hiding under a large piece of driftwood and I am unable to get a good picture, although I can post an image from the LFS's shipment posts.