Privacy Policy

Last updated: March 21, 2026

Sun Hydroponics (hydroponicplans.com) is a trade name of DayInspire, Inc., a Florida corporation.

Information We Collect

When you leave a comment or rating on Sun Hydroponics, we collect:

• Display name — shown publicly alongside your comments.
• Email address — stored privately; never displayed publicly. Used only to contact you about your comment if needed.

When you subscribe to our newsletter, we collect your email address to send you growing tips and new plans.

When you save a formulation in the Nutrient Calculator, we collect:

• Email address — used to associate saved formulations with your account so you can retrieve them on future visits.
• IP address — collected for spam prevention and abuse detection.
• Formulation parameters — including crop, nutrient brand, system type, water volume, and pH/EC settings.

When you upload a build photo, we collect the image, your name (if provided), city (if provided), caption, and IP address. Photos are reviewed by our team before being displayed publicly in plan galleries. You can request removal by contacting us.

We also collect IP addresses for spam prevention and rate limiting. IP addresses are not displayed publicly.

You do not need to provide any personal information to browse plans or use the site.

How We Use Your Information

• To display your comments and display name publicly on plan pages.
• To send newsletter emails if you subscribe (double opt-in, unsubscribe anytime).
• To prevent spam and abuse (via Google reCAPTCHA, keyword filtering, and rate limiting).
• To store and retrieve your saved Nutrient Calculator formulations so you can access them on future visits.
• When you download a plan PDF by providing your email, you will receive the PDF download link followed by up to 4 build-tip emails over 30 days to help with your project. You can unsubscribe from these emails at any time using the link in each email.

We do not sell, rent, or share your personal information with third parties for marketing purposes.

Cookies

This site uses the following cookies and similar technologies:

• Essential cookies — Anti-forgery tokens for form security.
• Analytics cookies — Google Analytics 4 collects anonymous usage data (pages visited, time on site, general location) to help us improve the site. No personally identifiable information is collected.
• Advertising cookies — We use Google AdSense to display ads. Google may use cookies to serve ads based on your prior visits to this site or other websites. You can opt out of personalized advertising at Google's Ads Settings.
• localStorage — Used to remember your name and email for the comment form as a convenience, to remember your cookie consent preference, and to store your email address for the Nutrient Calculator's saved formulations feature. You can clear localStorage through your browser settings at any time.

Third-Party Services

• Amazon Associates — We link to Amazon.com through affiliate links. When you click an affiliate link, Amazon's privacy policy applies. We do not receive personally identifiable information from Amazon.
• Google Analytics — We use Google Analytics 4 to understand how visitors use our site. Google's Privacy Policy applies. Data is anonymized and used only in aggregate.
• Google AdSense — We display ads served by Google AdSense. Google and its partners may use cookies to serve ads based on your browsing history. See Google's Advertising Privacy Policy for details.
• Google reCAPTCHA — We use Google reCAPTCHA v3 to protect forms from spam. Google's Privacy Policy and Terms of Service apply.
• AI-Powered Q&A — When you ask a question on a plan page, your question text is sent to a third-party AI service (currently Microsoft Azure OpenAI) to generate an answer. Only your question text is shared — no personal information (name, email, IP address) is sent to the AI provider. Plan-specific questions and their AI-generated answers may be displayed publicly on the plan page.
• AI Comment Moderation — Comments and display names may be processed by a third-party AI service for spam detection. No email addresses or IP addresses are shared with the AI provider during moderation.
• AI Custom Crop (Nutrient Calculator) — When using the AI Custom Crop feature, the crop name you enter is sent to a third-party AI language model to generate nutrient recommendations. No personal information is included in these AI requests.
• IP Geolocation — When you subscribe to our newsletter, your IP address may be sent to a third-party geolocation service to determine your approximate geographic location (city, region, country). This helps us send relevant seasonal growing tips.
• Azure — Our database and hosting are provided by Microsoft Azure. Data is stored in the United States.

Data Retention

• Comments are retained indefinitely unless removed by our moderators or at your request.
• Newsletter subscriptions are retained until you unsubscribe.
• IP addresses associated with comments are retained for spam prevention purposes and are automatically purged after 90 days.
• Saved Nutrient Calculator formulations are retained until deleted by you or for a maximum of one year, whichever comes first. Each email address may store up to 20 formulations. You can delete individual saved formulations directly from the calculator page. To request deletion of all your saved formulation data, please contact us.
• You may request deletion of your comments or data by contacting us.

Your Rights

You have the right to:

• Request access to the personal data we hold about you.
• Request correction of inaccurate data.
• Request deletion of your comments and personal data.
• Unsubscribe from the newsletter at any time via the link in each email.

If you are located in the EU/EEA, you also have the right to: data portability (receive your data in a portable format), restrict processing, object to processing, and lodge a complaint with your local data protection authority.

Security

We use industry-standard security measures including encrypted connections (HTTPS), rate limiting, and spam filtering to protect your data.

Children's Privacy

This site is not intended for children under 13. We do not knowingly collect personal information from children under 13.

Changes to This Policy

We may update this policy from time to time. Changes will be posted on this page with an updated date.

Contact

If you have questions about this privacy policy or want to request data deletion, please contact us.