i've heard a few people saying that there fish don't like NLS and won't eat it, i've been using NLS for the last 2 years and have had great results and healthy fish and have never had a problem with fish taking it until now.
i picked up a couple of istlamuns that had been fed on frozen bloodworm and tetra and they absolutely refused NLS the female would pick at the pellets and then spit them out but the male wouldn't even look at them but after a bit of perseverance they are now both eating it no problem it took me about 10 days to get them to fully take it but well worth it to get them onto NLS
i picked up a couple of istlamuns that had been fed on frozen bloodworm and tetra and they absolutely refused NLS the female would pick at the pellets and then spit them out but the male wouldn't even look at them but after a bit of perseverance they are now both eating it no problem it took me about 10 days to get them to fully take it but well worth it to get them onto NLS