Is D-Solv Safe for Koi Ponds? String Algae on Waterfall

Owner asks if "D-Solv" is safe for koi to treat green slime on waterfall/rocks.

D-Solv (AlgaeFix-type product) Safety

• Effective on string algae, waterfall slime.
• Safe for fish at label dose.
• CRITICAL: Do NOT let undiluted product contact plants—it kills them. Diluted in pond, it's safe.
• Aerate heavily during treatment—dying algae consumes oxygen.

Application Tips

1. Turn off waterfall briefly.
2. Apply directly to algae on rocks (spray/brush).
3. Wait 15 mins, restart waterfall.
4. Monitor fish for stress.

Use as spot treatment, not whole-pond broadcast, to protect plants.