Hello. I have a pair of longfin ancistris that have spawned and long after finding the fry I noticed they disappeared. The parents are in a heavily planted 340 gallon. I haven't seen any babies in there. There's probably close to 100 assorted community fish in the tank so I wouldn't give them much chance. I found about 15, .5"-1" fry in the sump. I removed 7 of them and put them in a 10 gallon that is completely filled with java moss that I use to spawn shrimp. There's nothing in the tank but cherry shrimp and some small hitchhiker snails. I feed those guys flake and algae disks and noticed the plecos for only a couple days. Given it's literally a tank of java moss I know I could go for a few days without seeing a baby pleco but it's been about a month without a sighting. I left the others (maybe 6 I saw) in the 75 gallon sump. It's filled with bags of pond matrix and bioballs so there's plenty of places to hide in there too. I would see some them about everyday for nearly a month. They get fed through the overflows and I also dropped some crushed up algae disks in. The biggest one was probably an inch or a little longer last week. All of a sudden I quit seeing them. Does anyone have an idea of what could have happened?
