The Oto Journal
This is a bit late from the beginings but figured I go ahead and start it off here.
History: I had a 10g tank setup for plants. I included a pair of oto's to help with a major diatom problem that soon developed. I later added yellow shrimp and briggs snails. Turns out the oto's were a matched pair (male and female). One day I noticed wigglers in tank. The rest is history from there. The pair continue to have offspring today.
Substrate: SMS (Soil Master Select)
Lighting: T24 (20w)
Photo Period: 10hrs (0800-1800)
Heavily Planted (species list to follow later)
Occupants: 2 adult oto's, Yellow shrimp and (5) Briggs snails and (1) CRS shrimp
Feeding (as of 05/29): (2) pinches finely ground up flake food and (2) small Hikari algae waffers broken up into very small pieces.
DIY Co2 (jell-o method)
Dry Ferts (I started with the PMDD pre-mix, then switched to EI dosing. Since the wee ones started appearing, I went back to PMDD for more stability)
Water Changes: I try to keep between 10-20% every other week. It used to be weekly, but now I have to try and maintain very extremely little change in this tank.
Water Parameters: (These are my average measurements)
Temp: ~ 74
PH: ~ 7.4
NO3: ~ 40
GH: ~ 11
KH: ~ 6
I think this is good baseline info to start off with. I have had baby oto's for quite awhile now. I did lose one batch of fry to what I determined was fouled water from a water change.
Here's my numbers at last count (a couple of days ago):
Juvenile Otos: 1
Baby Otos: 12: 9 showing color and 3 newbies (still white)
I did a 20% water change today. Could not get an accurate count of babies today to excessive activity between the Oto's and baby yellow shrimp. Way too much activity. I did manage to physically count (7) on the glass. There were swimmers all over the place.
That's my beginings. Will continue to keep this post updated as much as possible. There's not a whole lot of info out here on Oto's and especially breeding them. I'm definately not trying to breed...just letting nature take it's course. My job now is strictly to maintain this tank as stable as possible.
Thanks for reading and feel free to ask any questions and such you may have.