p id please- not the rbps I was expecting

  • We are currently upgrading MFK. thanks! -neo
well I pulled a newbie mistake for the first time in a long time. I don't use air stones on a lot of my tanks, I just use the filter for surface agitation, with the exception of my p tanks. Well after moving 2 55g tanks and a 20 around to make room for these new guys, it was about 5 this morning. I had a canister filter and 2 600gph powerheads on the tank but no surface agitation so I add a 30-60 hob filter and called it a night. What I forgot was that the impeller in that particular hob has a tendency to freeze up. You can imagine my horror when I woke up and saw 15 little P's gasping at the surface and turning on their sides. Luckily I have "too much fish stuff" as everyone tells me, so it only took about 30 seconds to have an airstone in the tank and a siphon sucking the water outside. I started pumping water from the 55g next to it, poor rhom must have thought it was the dry season coming on, and managed to save everyone. I'm really glad I was only asleep for 2 hours.


Edit: I just saw where you asked how many, I ended up with 15 p's total from him but only 6, maybe 7, were the macs. He was supposed to hold them until today to give me time to set up a tank for them but after I bought the initial 6 he called around 10pm and said he had sold all but 9 and the he wanted $8 a piece for the rest since someone else had offered him that. I drove over there and got those 9 before he changed his mind again.
 
you can point the outlet of your canister filter towards surface or powerhead towards surface to create surface agitation.
 
yeah I have some set up like that but with this canister I would have to add a U to redirect the flow upwards and the 2 PHs I have for now are darn maxijets so they would have to be turned sideways or fitted with the flow adjusters. I did put a flow adjuster on one so I could attach some air tubing. That and the airstone I have in there now are giving plenty of agitation. Thanks for the ideas.
btw, before I get flamed for having 15 P's in a 55g, I have an empty 125g to use for grow out once I build the stand this week.
 
they don't look liek macs, the fins are far to red, macs have a golden anal fin vurtually no red what-so-ever!
 
I think the color of the anal fin varies from fish to fish, n diet might play a role in the red anal fin. Macs can definitely have red anal fins.
 
It has surprised me how well they shoal together thus far. I guess that's because he had around 30 mixed macs and rbps in a 55. The guy I got them from was feeding lots of live goldfish and cichlid sticks. I've got them on beef heart and krill for the moment. Working on getting them onto the pellets I use and adding some tilapia to the mix. Can't wait to get thee guys in the 125g.
 
jerzyperson;4302308; said:
they don't look liek macs, the fins are far to red, macs have a golden anal fin vurtually no red what-so-ever!

I haven't been studying piranhas as much as I used to but I don't think the color of the anal fin is indicative of any particular piranha species. The eyes are not red and most Natts have red eyes. Also if you look closely at the caudal fin you'll see that there's a band of black tissue, a band of hyaline tissue, and a band of black tissue. This typically indicates S. maculatus (and sometimes spilopleura). The head and body shape also look more mac than pygo to me.

Having said all that, there's also some examples of P. nattereri that exhibit a similar caudal pattern so...it's hard to say. I'm guessing S. maculatus.
 
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