I have had a problem with one of my rummynose in the past, and they said it was bullying by the bloodfins because the bloodfins were hungry. It is happening again, but not as severe. Here is a copy of my other thread:
I have posted about this before, but I have a tank that I fishless cycled with ammonia on March 8. It has 7 bloodfin tetras and 5 rummynose tetras. My most recent test ( two days ago) got:
10 nitrate
0 nitrite
0 - .25 ammonia
7.6 ph
One of the rummynose has a tear on his fin that was not there before. I left on a trip on the 27th, and when I got back a diferent ones fin was completely gone (tail fin). he eventually died, which I determined was from bullying by the bloodfins because they were hungry. Now what is wrong?
Is it fin rot or bullying?
I have not seen the bloodfins bullying anyone at all. I added 3 rummynose on the 26th, then one died and I added 3 more on the 1st. I plan to add 2 more to bring my total to seven next week, when my lfs gets more. So does this one have fin rot?
Is it bullying?
what should I do?
Tank is a 20 high, i do wcs 5-10 gallons every weekend, haven't vacuumed gravel or changed filter pads.