[Q]: Objective: How to Kill Hydra in a Freshwater Aquarium
[A]: Hydra are related to jellyfish and are a common pest in home aquariums. Hydra are not generally harmful to fish, except they do have the ability to catch and consume small fry and shrimplets. Hydra are usually an indication of overfeeding, so feeding smaller quantities less often will help put a dent in their populations but their populations can be knocked out completely with a dose of common dog dewormer, available over the counter called Fenbendazole. Dose 0.1g fenbendazole per 10g of water volume. For heavy infestations, monitor water quality carefully after treatment to monitor for harmful ammonia spikes from decaying hydra.

[Q]: Objective: how to set jelly that is runny
[A]: place the jars in a shallow pan half filled with cold water, then bake in moderate oven for 30 minutes.

[Q]: Objective: To make tomato sauce.
[A]: Purchase tomato paste and add ingredients to make it taste more italian like garlic, rosemary, and basil to mix into the paste.

[Q]: Objective: To remove the backing from a strip of EL ribbon without destroying the electrical tracks.
[A]:
Use a hair dryer to heat up the strip so you can peel it off.