Join Date: Oct 2012
Location: North Central, OH
Oto's should have at minimum 20 gallons. They will run through algea in a 10 within a few days. Maybe with the tank being in direct sunlight that might change some things, but I really think they should have a bigger tank.
As for acclimating, do as you would with a new betta. I hope your tank is cycled though, oto's are pretty sensitive to water parameters.
10 HM, 3 HMPK, 5 HMPK fry
8 German Blue Ram, 5 Green Dragon BNP, 4 Albino BNP, 4 Calico BNP, 6 Red BNP, 5 Kuhli Loaches, 2 ADF, 7 Peppered Cories, & 6 Tiger Endlers + Fry
12 full time tanks, 4 NPT, 6 QT/Breeders