So a bit of a sad little tale for a Monday morning folks. 😔
Over the past 2-3 weeks I have noticed my Chili Rasbora population dwindling, down from around 50 odd fish, to now around only 8.
I haven't been able to figure out what was going on - they were all healthy and showed no sign of any disease, they've been wormed, and are feeding well on a big diet of mainly live foods - in fact they were all colouring up beautifully. What is strange is that I've found no corpses, seen no sick or ailing fish, nothing visually to suggest a problem. Water is in tip top condition with a rock solid 93ppm TDS.
Then last night whilst we were out, my Mum (who was baby sitting for us) and son literally sat and watched one of the monster Amano's stalk and catch one of the smaller Pencil fish. Again none of the pencils look anything other than in the best of health - they tapped on the glass and the Amano let it go, and the fish dived into the undergrowth, with the Amano in hot pursuit. After watching it go crazy in amongst the leaves, it climbed out onto a branch with the fish firmly held by the tail - still struggling to get away - and proceeded to start eating the poor thing.
Now there is always food in the tank for the Amano's - always a whole quarter (4 inch section) of cucumber or courgette, and regular algae wafers and home made rapashy.
I know there is always the possibility of some invisible fish disease and I'm not completely ruling that out, and folks always say Amano's will only go for sick or dying fish, but to not see a single corpse or ill looking fish at all, I'm strongly suspecting that the long and short of it appears to be that some of the larger Amano's have got blood lust and discovered they can catch a more protein rich meal rather than graze on veggies. There is also a big size difference here - the Amanos are 3 inches long, vs sub-1 inch fish.
I'm gutted to be honest, even forgetting the cost of the fish, to have a whole shoal decimated like that. So now it's Amano hunting time, I know there were 6 large females in there, so I need to get them out ASAP, and they can live out their lives in the sump or another thank 😞