How I Got Rid of Hydra (Do not inject)

Source: https://www.youtube.com/watch?v=YdAP_S3f-No

Do you guys have any methods of controlling hydra? Please share! Also, apologies about parts of the voiceover. Construction crews have been repaving the roads for the last few days and picking up the sounds of their equipment is unavoidable.

Here are some additional resources that I used for my hydra video:
Planet Inverts' Article ► https://goo.gl/gTTuzn
Aquarium Advice Forum Post ► https://goo.gl/oPCUk1

The Safe-Guard Recipe:
Mix 10 oz. of dechlorinated water to every 1 gram packet of Safe-Guard to make a pre-made mixture. From this premade mixture, measure out 1 oz. of liquid for every 10 gallons of tank volume.

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