Description Altum Angel (Pterophyllum altum) Origin: Wild Colombia Locale: Rio Orinoco Diet: Invertebrates, insects, frozen & prepared feeds Adult Size: 6″ (up to 12″ in height) Recommended Tank Size: 90 gallons Compatibility: Generally peaceful, but can be aggressive toward conspecifics and may eat small fish Preferred Water Parameters pH:                          5.5 – 7.0 Temp:                     78-84F Ammonia:              0ppm Nitrite:                    0ppm Nitrate:                  <30ppm Shipping Note: Due to size, the need for extra packing, and space requirements, certain sizes are not eligible for our flat rate shipping. We strongly recommend shipping larger via air cargo when possible. Please contact us for a quote or for additional shipping info.