The Planted Tank Forum banner
61 - 69 of 69 Posts
I saw four of them, alive. They are eating something. They said "as you can see we aren't dead..."

I haven't seen an Oto outside of weekly water change, when I disturb crypts.
😂😂😂 my single oto taunts me all the time with his fat belly- I swear it's because I've held the "no less than 8 oto" rule for so long that he's just mocking me. I removed all his buddies when I was having filter issues and they were unhappy. He's the stubborn stand alone and he thinks he's a rummynose (he schools with them). Gotta love 'em.
 
Did your oto make it? 🙏
Random update: So about a month and a bit after I responded to this saying my 1 otto was fine, I went away for a week, came back and could not find the otto at all. Presumably died at some point and eaten completely by the shrimp and cpds... Strange as it seemed fine when I left and a week isnt too long. Looked around to make sure it didnt jump or anything. All other fish and shrimp were fine and still are to this day.
 
Discussion starter · #63 ·
Hi @miktrebor

I have some difficulty accepting this term "plop and drop acclimation". To me, it's a contradiction in terms. There is no acclimation (or acclimatization as we would say in Old Blighty). So, this approach seems wrong to me. Otos are tiny fish whose osmoregulatory system must surely be tested to the limit when transferred instantly from one set of water parameters to another. It's not just electrolyte balance but pH, temperature, etc. Unfortunately, I can't provide any evidence to prove that this method is flawed. If this method has the potential to stress fish, then perhaps this will make the fish more susceptible to infection?

Anon
Random update: So about a month and a bit after I responded to this saying my 1 otto was fine, I went away for a week, came back and could not find the otto at all. Presumably died at some point and eaten completely by the shrimp and cpds... Strange as it seemed fine when I left and a week isnt too long. Looked around to make sure it didnt jump or anything. All other fish and shrimp were fine and still are to this day.
sorry to hear that….You know I keep hearing that otos prefer being with other otos. They fail to thrive without company. So he may have just gotten a little bit too isolated and scared to do his normal amt of grazing for food…. I now have three otos, which are still hiding most of the day but I have noticed little bits of increased confidence in them grazing even during the day. I will never forget the one time that I had 8 otos, they just swimming around like a shoal. Completely different behavior than when i had fewer #s. It made me want to get more, but i was having issues keeping them alive so i went on a moratorium for a while. After another year or two of tinkering with the tank and my water parameters and adding plants and being a little bit better about acclimating new otos to my tank, my success rate is much better at keeping them alive. It could’ve been luck, but I think you just accumulate a lot of experience observing these critters and getting used to them. I swear that once they get through a certain period, they are nearly indestructible. One time I even horribly got one of the otos stuck in my cleaning sponge and I had to spend 10 minutes disentangling it. I swore it was a goner, but the next day he was swimming around like nothing happened!
 
I have 10 in a 40B - i normally find 9 nearly every day near the front waiting for when i feed the fishes. A couple of them are pretty large - i presume females - kind of wish i would end up with a lot of little ottos but they never seem to have an interest in spawning...
-
I have had them now for a year+. I had 4 that are over 1.5 years old and then picked up another 6 8 or 9 months ago.
 
I have 10 in a 40B - i normally find 9 nearly every day near the front waiting for when i feed the fishes. A couple of them are pretty large - i presume females - kind of wish i would end up with a lot of little ottos but they never seem to have an interest in spawning...
-
I have had them now for a year+. I had 4 that are over 1.5 years old and then picked up another 6 8 or 9 months ago.
From what I've been told by a couple that has managed to spawn their otos repeatedly ("not sure if vitatus or affinis but definitely one of the 2") it required specimen only tank and "optimal conditions" (I'm assuming targeted parameters). I've had a few do the dance but never actually successfully spawned.
 
Discussion starter · #66 ·
If anyone in the NYC area is able to breed and sell otos, please let me/us know! It would be amazing to have a local source that doesn't rely on LFS who get them shipped in horrible shape from the Amazon. I think that's half the battle in keeping these suckers (I mean that literally) alive through the first few weeks.
 
Like many of you, I've had otos over the years, and had trouble keeping them. I decided to try again and I got new ones about a month ago and they have had the strangest behavior for otos. They swim with the other fish in the middle to top area of the tank all day long. They are never at the bottom and are never eating algae from what I see. They seem to sleep stuck to the side of the glass near the top. Have any of you seen this type of behavior before. Like I said, I've kept many over the years, but have never seen this type of behavior.
 
Discussion starter · #69 ·
Like many of you, I've had otos over the years, and had trouble keeping them. I decided to try again and I got new ones about a month ago and they have had the strangest behavior for otos. They swim with the other fish in the middle to top area of the tank all day long. They are never at the bottom and are never eating algae from what I see. They seem to sleep stuck to the side of the glass near the top. Have any of you seen this type of behavior before. Like I said, I've kept many over the years, but have never seen this type of behavior.
Is this behavior continuing? When I had 8 healthy otos they would meander freely during the daytime in a pack, sometimes near the top. Now I only have 3, so they always stay hidden until night, when they graze. I have had the same 3 otos for a few years. As long as they don’t seem in distress (swimming frantically or gasping for air near top, like when you have too much co2 in the water) or underfed, gentle swimming around is a good sign imho.
 
61 - 69 of 69 Posts