US Map Mania: A StatebyState Exploration Guentheri's Killifish. This species is also known as Gunther's Killifish, Redtail Notho, and Guenther's Killifish. A beautiful fish which is distinguished by its vividly bright colors and eye catching appearance. Guentheri's Killifish have a habit of nipping the fins of other fish, they are best kept as a group of males only or with other hardy fast swimming varieties if the aquarium is large enough with available hiding spots and decorations. This beautiful Killifish may require a lid to keep them safe from jumping, they also prefer alkaline water conditions and can be sensitive when pH drops to lower levels, our Discus. ae stocks are acclimated to neutral water conditions (pH 7. 0) and it is recommended to add salt to boost their immunity and protect them from velvet. Fish Size Guide: The 'Maximum Size' outlined below is the length this fish can reach as a full grown adult. For the actual size please use the select menu above. Discus. ae prefers younger stock for their better ability to adapt to new water parameters and higher tolerance against transport. On rare occasions you may receive larger specimens when small fish are unavailable, however the smallest should be expected unless the size is noted as "Large" or "Adult". Species Information: Scientific Name: Nothobranchius guentheri Maximum Size: 3 inches Temperature: 22 C to 28 C pH Range: 7. 0 to 8. 0 Origin: Africa Stendker Discus: Non Compatible Dwarf Shrimps: Non Compatible Notice: Live animals are not manufactured products, sizes may vary and colors will be faded upon delivery from transport. Shipping Policy and Terms & Conditions must be read before placing an order.