魚図鑑
レッドラインラスボラ
飼育難易度
繁殖難易度
thoughts: the user is asking for the water ph preference (alkali, neutral, acidic) for the "レッドラインラスボラ" (redline rasbora). i need to recall or look up the scientific name and then its water parameters.
1. **identify the fish:** "レッドラインラスボラ" is the redline rasbora.
2. **scientific name (optional but helpful for precise search):** *rasbora borapetensis* (or sometimes *trigonostigma borapetensis* in older classifications, but *rasbora borapetensis* is more common for the "redline" description).
3. **research water parameters:** a quick search for "rasbora borapetensis ph" or "redline rasbora water parameters" reveals:
* ph: 6.0 - 7.5 (some sources say 6.0-7.0, others up to 7.5).
* temperature: 22-26°c (72-79°f)
* hardness: 5-15 dgh
4. **interpret ph range:**
* acidic: below 7.0
* neutral: 7.0
* alkaline (alkali): above 7.0
the range 6.0 - 7.5 spans acidic, neutral, and slightly alkaline. however, the *ideal* or *preferred* range often leans slightly acidic to neutral. many sources emphasize "soft, slightly acidic to neutral water."
if i have to pick *one* word, and the range is 6.0-7.5, it's not *strictly* acidic, nor strictly neutral, nor strictly alkaline. but if forced to choose the *most appropriate* single word that covers the *preferred* part of the range, "neutral" is often used for fish that tolerate a range around 7.0, even if they lean slightly acidic. "slightly acidic to neutral" is the most accurate description.
let's re-evaluate the common understanding for these terms in aquaristics:
* acidic: ph < 7.0
* neutral: ph = 7.0
* alkaline: ph > 7.0
22〜28℃
約3cm
