帝王(wang)(wang)(wang)魟(hong)(hong),學(xue)名門查江魟(hong)(hong)(Potamotrygon menchacai),又稱(cheng)帝王(wang)(wang)(wang)老(lao)虎,老(lao)虎魟(hong)(hong),為(wei)燕魟(hong)(hong)目(mu),魟(hong)(hong)科,江魟(hong)(hong)屬一(yi)種(zhong)淡水魚類。帝王(wang)(wang)(wang)魟(hong)(hong)分布(bu)于(yu)南美(mei)(mei)洲秘(mi)魯,外(wai)形奇特,色彩(cai)美(mei)(mei)麗,可作為(wei)觀賞魚類。
2017年,科學家發(fa)現了1萬8000種(zhong)新物(wu)種(zhong)。從這(zhe)些新物(wu)種(zhong)中,美國(guo)國(guo)際物(wu)種(zhong)檢定研(yan)究(jiu)所評選出(chu)了10大最奇特的新物(wu)種(zhong),帝王(wang)魟名列其中。
帝王(wang)(wang)魟(hong)(hong)體呈圓片狀(zhuang),尾(wei)(wei)部(bu)呈鞭狀(zhuang)。帝王(wang)(wang)魟(hong)(hong)在幼(you)魚(yu)(yu)階段,基底顏(yan)色(se)與虎斑狀(zhuang)花(hua)(hua)紋(wen)都比較(jiao)淡,隨著魚(yu)(yu)體的(de)成(cheng)長會(hui)逐漸發生顏(yan)色(se)的(de)深淺變(bian)化。長大(da)(da)成(cheng)魚(yu)(yu)以后,絢爛奪目的(de)表現讓(rang)人賞心悅目。這種華麗(li)的(de)大(da)(da)型南(nan)美魟(hong)(hong)魚(yu)(yu)身上所擁有的(de)金黃色(se)花(hua)(hua)紋(wen)獨步所有的(de)魟(hong)(hong)魚(yu)(yu)品(pin)種,尾(wei)(wei)巴黑黃相(xiang)間與腹部(bu)全白為其(qi)最(zui)大(da)(da)特色(se)與賣點,最(zui)大(da)(da)體盤(pan)的(de)直徑可達1500px,英文俗名:tiger ray,直譯稱為老虎魟(hong)(hong)。帝王(wang)(wang)魟(hong)(hong)的(de)尾(wei)(wei)柄上分布有盾鱗演化出的(de)盾鱗丘(qiu),最(zui)長的(de)一根特化為尾(wei)(wei)刺,內(nei)有溝槽,遇敵時(shi)會(hui)以尾(wei)(wei)刺蟄刺敵害,同時(shi)通過溝槽注射毒(du)液,其(qi)毒(du)液為劇毒(du),非常危(wei)險(xian)。
帝(di)王魟適宜酸性軟水(shui)(shui),pH為(wei)5.8~6.5,水(shui)(shui)溫為(wei)24至29攝(she)氏(shi)度,對硬度要求不高,dH5–10,稍高一點也沒有關系(xi)。帝(di)王魟對水(shui)(shui)環(huan)境的波動低抗性較(jiao)差,切忌突然變化溫度及大(da)量換水(shui)(shui)。同(tong)時所有的魟魚類都(dou)不耐(nai)藥(yao)物,所以飼養(yang)中不要輕易下藥(yao)。