Freeze dried blackworms - bloat

Hey JS,
I would do an in tank Epsom salt treatment with a fast. ES baths are not effective. If you do a water change tonight, he should be fine for 4 days.

If you are not sure how to do the treatment...
Take a cup of water out of the tank. Add 1 Teaspoon per gallon of Epsom salt to the cup and allow it to dissolve. Slowly, over a period of an hour pour the ES mix back into the tank. Do your water changes as recommended, but remember to add 1 tsp. of ES back in for every gallon you remove. Epsom salt & Aquarium salt cannot be used together. So if you used it recently do a 100% water change to remove it before the ES treatment.

A slight bump in temperature can help too.

Frozen daphina works like a laxative, but as you mentioned it can be hard to feed.

Yep, after your water change will be fine. At 1 teaspoon per gallon, you would be dissolving 5 teaspoons of Epsom salt for your 20 liter tank.

Lets hope so, people have used it for as long as 30 days with no issues. I know Bill has had quite a few problems in the past. I do not think the ES will have a negative effect on him.

I don't think it will hurt your cycle at all. If he's looking better when you get back do a 50% WC and don't add back in the ES. Then just keep doing your water changes as scheduled.