Here is the sultan pleco...

Minimum Tank Size:200 litres
Diet:Omnivore
Origin:South America
Temp (C):22-26 C
Max Size:15cm
Family:Loricariidae
Temperament:Peacefull
pH:6.5 - 7.0
Care Level:Moderate
Grey with black spots. Juveniles have white tips on their fins, which fades to yellow as the animals mature. Adult males have a much longer and broader head with small odontodes on the sides of head, more odontodes on pectoral fin spine and on the whole body, a bigger dorsal fin and normally a prettier coloration
Gets on with small lively catfish but avoid too many other larger bottom dwellers (unless space permits) due to the territorial disputes. More active when kept in a group
Not a fussy eater. Primarily herbivorous, but appreciates some meat in its diet. Will eat sinking pellets and vegetables such as cucumber, and relishes meaty foods such as krill. According to some reports, in nature it feeds on insect larvae. Fry require more protein in the form of baby brine shrimp, etc
Approximate Purchase Size: Medium 6cm -7cm
