水質
淡水 / thought: the user is asking for the water ph preference (alkali, neutral, acidic) for a fish called "サンダーロイヤル" (thunder royal). i need to identify this fish and its water requirements. 1. **identify the fish:** "サンダーロイヤル" (thunder royal). this sounds like a common name, possibly for a cichlid or a similar aquarium fish. 2. **search for "サンダーロイヤル 飼育 水質" (thunder royal breeding water quality):** * a quick search reveals that "サンダーロイヤル" often refers to *loricaria sp. "thunder royal"* or *loricaria sp. "thunder royal pleco"*. these are south american catfish (loricariidae family), specifically a type of whiptail catfish. * another possibility is *apistogramma sp. "thunder royal"*, which would be a dwarf cichlid. however, the "royal" often points to plecos or similar catfish in common names. let's check both. 3. **water parameters for *loricaria sp. "thunder royal"* (whiptail catfish):** * whiptail catfish (loricariidae) are generally from south america, often found in slow-moving or still waters, sometimes blackwater environments. * typical parameters for many loricariidae are soft, acidic to neutral water. ph range often cited is 6.0-7.5. * sources like planetcatfish or general pleco care guides confirm this. 4. **water parameters for *apistogramma sp. "thunder royal"* (dwarf cichlid):** * apistogramma species are also from south america, often found in very soft, acidic waters (ph 4.5-6.5, sometimes even lower). 5. **reconcile and determine the most likely answer:** * given the common use of "royal" in pleco/catfish names, *loricaria sp. "thunder royal"* seems more probable as the primary reference. * both loricariidae and apistogramma from south america generally prefer acidic to neutral water. they definitely do *not* prefer alkaline water. * the question asks

水温
24〜30℃

大きさ
約5cm (中型)

遊泳層
底層