Majsa
Member
I bought 6 otos 3 or 4 weeks ago and things didn't turn out as I'd hoped, have lost 3 until now. These remaining otos seemed quite alright (one is too thin to my liking but he's still there), but now the biggest oto (she had a really round belly at some point so I assume it's a female) has developed a strange w-shaped mark right between her eyes. It looks like it's made of really small light-coloured dots and it is rather symmetrical, as if following some anatomical structure (armour plate?). I think I first saw it on Friday, and it hasn't changed much, maybe got a little broader and more "oto-coloured" instead of whitish. The fish remains the most active and the best eater of the three, not showing any signs of discomfort. Now that I also see some short brown hairs coming out another otos nostrils (is this normal, or just dirt?) I wonder if everything is OK.
The first picture is from a couple of weeks ago, when she didn't have the mark. The second picture is from Saturday and the last one from yesterday (the one from above). I'm sorry for the bad quality, I don't have a decent camera!
What could this be, any ideas? The otos live in a 45L tank (I have a journal here) together with 3 clithon coronas, no other tank mates (unless you count the limpets and the copepods...).
The first picture is from a couple of weeks ago, when she didn't have the mark. The second picture is from Saturday and the last one from yesterday (the one from above). I'm sorry for the bad quality, I don't have a decent camera!
What could this be, any ideas? The otos live in a 45L tank (I have a journal here) together with 3 clithon coronas, no other tank mates (unless you count the limpets and the copepods...).