How long have you had them?
I’ve had some...problems...with Congo tetras. In total, I‘ve bought 15. I bought 5 about 8 months ago. Unfortunately, 4 of them were males. Once they got big, they harassed each other all the time. They harassed each other to the point where the fins were no more. They would fall to the ground, unable to swim, and get eaten by my delhezi. this happened over and over again, and I’ve tried to get mostly females, but the store doesn’t have females that often, or they only have 1” ones. So, I’ve had 1, the smallest of the bunch, a female, around 4 months, and, 3 large males for around 3 months, What I’ve noticed is that when more were added to the group, they don’t like it.
In the summer, some MFKers suggested to lower the heat. I had previously lowered it down to around 76-74. I did that a little While ago. I lowered it because I live in SoCal, and it is 80-90 in the day, and 75-80 at night.
Are they old enough to tell males from females?
1 female 3 males.
From my many experiences with congo tetras they will usually eat just about anything anytime I feed but don't typically like when I feed flake food.
Mine usually do, so I thought it was odd the first day that they didn’t accept their flakes. Then I started to worry the second day that they didn’t accept the flakes. Actually, come to think of it, the little female eats just a tiny bit. But afterwards, they didn’t accept brine shrimp (the female accepted a few little ones)
I've been feeding fluvial bug bites for the last couple of years they go nuts for the color enhancing blend, actually all my fish love that. It's funny to watch my big polys scarfing up those little pellets.
Do you suggest I get this kind of food?
Something I noticed in one of my males just today is listing to the right side. I’m not sure why. I did a wc a few days ago, so the ammonia and nitrite are at 0, and Nitate at around 5.
edit: I went to a friends house to watch the fights yesterday, and he has a 75g with some bottom dwellers, and a large school of Congo tetras. Around 12 of them, 2 Albino. But EVERY SINGLE ONE happens to be a male, and he has never seen them fight the way mine do. I’ve tried getting a larger school, but every time, they don’t like additions.
edit edit: Come to think of it, I removed a very large decoration about when They started not eating. Maybe the day before,
