玻利維亞產:主要為Rio Baures , Río Iténez
巴西產:主要為Río Iténez , Batovi River , Rio Araguaia , rio Branco , Rio Negro , Rio Solimoes , Rio Novo
祕魯產:主要為Río Nanay
蘇利南產:主要為Corantijn River
委內瑞拉產:主要為Orinoco River
異名
Acara portalegrensis
Aequidens portalegrensis
Cichlasoma portalegrensis
分布於南美洲巴西Laguna dos Patos及Tramandaí河流域，體長可達10.3公分，棲息在河川及湖泊中底層水域
Unlike other "port" cichlids, the Port Acara Cichlasoma portalegrense (previously Aequidens portalegrensis) has iridescent colors and is the most attractive member of this group. The term "port" used in both its common name and species name is derived from the location where this species was first collected back in 1870. It was caught in stagnant ponds near the city of Porto Alegre, in Brazil. It is also called the Black Acara, Red Port Acara, Port Cichlid, and Acara Cichlid.
These are undemanding fish and are the perfect beginner's cichlid. They are attractive medium sized cichlids, reaching about 6 - 8 inches, that are easy to care for and do well with tankmates in a cichlid community tank. They will eat anything you give it and only need regular monthly water changes. They spawn easily and generally make excellent parents. They are a community cichlid that can be kept with other smaller South American cichlids, larger peaceful cichlids such as Discus, catfish, or plecostomus. They are generally peaceful except when breeding and will not bother any fish that stay away from their territory.
These cichlids will appreciate a decor with plenty of rocks and roots placed so as to create caves and natural territorial divisions.They enjoy living plants and are safe around them, but they also like to dig when breeding and can potentially dig up the roots of rooted plants. To prevent this, it is recommended to keep plants potted or surrounded by large, immovable rocks or other decorations. Alternatively, you can keep a number of floating plants in their tank. Floating plants offer the Port Acara some cover and will discourage them from digging around rooted plants.
A (Aperture-priority Mode) - 光圈優先模式/光圈先決：用家設定光圈值，相機自動計算出合適的快門速度。
S (Shutter-priority Mode) - 快門優先模式/快門先決：用家設定快門速度，相機自動計算出合適的光圈值。
P (Programmed Auto) - 程序模式：用家不用理會光圈快門，相機會自動計算。
Auto - 全自動，等同傻瓜機，所有東西也由相機控制，包括閃燈、光圈、快門、ISO值等，舉起便拍！
各模式使用
M - 模式Manual ModeM，完全是靠自己的拍攝模式。光圈、快門或感光度的設定，都交給你去判斷。使用M模式時，可根據曝光指示器（EV值）的跑動，來調整光圈或快門，讓照片的曝光達到「天人合一」的境界。
想讓畫面更有個人風格，M模式是一個極具創意思考的拍攝模式如果你需要全面控制光圈和快門來達到一定的目的，如在室內光線不會有太大變化的環境下。
A - 模式Aperture-priority ModeA，為光圈先決模式。由你控制進光量（光圈F值），相機再依據設定的光圈值，產生相對應的快門數值。光圈裝置其用處是去調整透過鏡頭的進光量。在光圈先決模式下，使用者可調整光圈數值來拍攝照片，若將光圈數值調低進行拍攝的話，就會使光圈開啟並且接受更多的光線；相反地，在光圈數值高的狀態下拍攝的話，光圈會縮小，接受的光線量也會變少。
S - 模式Shutter-Priority Mode，為快門先決模式。相機讓你決定快門速度，它再自動產生光圈值。假如拍攝目標是正在移動中人或動物，可使用高速快門（快門數據上的分母數越大）來凝結他們的動作。反之，當你想塑造細水長流或車水馬龍的感覺，使用慢速快門（快門數據上的分母數越小，甚至出現1"），讓移動的軌跡停留在畫面上。
P - 模式Program AE，為程式自動曝光。由相機自動進行測光，然後產生一組光圈、快門數值，讓照片獲得均勻的曝光。可藉著P模式，瞭解光圈和快門的搭配規則。
跟Auto比較起來，P模式相當「人性化」，因為它能自由地調整感光度、對焦點、測光模式、EV曝光值等。好處是在各種不同的拍攝場景，可靈活運用。
巴西產:主要為Rio Araguaia , rio Tefé , Rio Solimoes , Rio Tonantins , Rio Xingu , LAGO MAXIMO , LAGO MANACAPURU , RIO HYUTAHY , Rio Jutai , RIO NEGRO , Rio Arari , Rio Trombetas 蓋亞那產:主要為Essequibo River 祕魯產:主要為RIO ITAYA , Río Yavarí , Río Ucayali , Río Nanay , Rio Aucacayu , Río Samiria , Rio Manite , RIO YARAPA
