This is a thoughtful question that aligns with core Jain principles, particularly ahimsa (non-violence) and aparigraha (non-possessiveness).

Jainism teaches:

• Ahimsa is not just non-violence to humans, but extends to all living beings, including aquatic life and even microscopic organisms.
• Careful consideration is given to the impact of one's actions on the environment, and minimizing harm is a spiritual duty.
• Aparigraha encourages limiting one’s desires and consumption to reduce harm to other beings and the environment.

Application to AI and environmental impact:

• If the use of AI (or any technology) results in significant harm to living beings—especially through water usage, pollution, or harming aquatic life—then from a Jain perspective, its use should be minimized or avoided.
• Jain monks and serious lay followers often avoid activities that indirectly cause significant harm to living beings or the environment.
• For laypeople (śrāvakas), Jainism recognizes practical limitations and prescribes minimizing harm as much as possible, even if total non-violence is not attainable in every aspect of modern life.

Conclusion: In theory, if the use of AI is proven to cause considerable harm to water resources and aquatic life, strict followers of Jainism would be encouraged to avoid or greatly limit its use, or seek alternatives that minimize environmental impact. Each individual should make choices that align with the Jain vow of ahimsa to the greatest extent possible within their circumstances.