Highest temp for beneficial bacteria

[Drstrangelove]

I started to wonder about that earlier, (for about 10 seconds) but I was too lazy to do all the math.

Bless you for doing the hard work! I was wondering if the dosage on the Kusuri instructions was meant to be only for planaria, not hydra.

I think we'd have to see if Kusuri even suggests a dosage for hydra. So, yes, it might not have worked at 1/5th the dosage.

Regardless, it's a common medication for hydra that works, so it does raise a curious question.

 

[Drstrangelove]

This person used .6 ppm and it worked.
http://www.aquaticplantcentral.com/...-planaria-hydra-elimination-shrimp-tanks.html

 

[Grinch]

Well ... the dose on the kusuri instructions is nearly 5 lower than what's recommended to kill hydra from that study I linked to which states:

"dose levels are 0.5 grams of 10% flubendazole in 20 gallons (75 liters) of water"

0.5 grams 10% flubendazole per 20 gallons (75 liters)
500 mg / 75 L =
6.67 mg/L 10% flubendazole =
0.67 mg/L flubendazole

Kusuri is 50 mg/g (5%) flubenzadole and the directions say 1 scoop (0.3g) per 30 gal. You used 2 scoops for 55 gallons so,

0.6 grams 5% flubendazole per 55 gallons (208 liters)
600 mg / 208 L =
2.88 mg/L 5% flubendazole =
0.14 mg/L flubendazole

0.14 ppm compared to 0.64 ppm? The numbers are so different maybe my math is wrong.
Drstrangelove Grinch

At that dose, did the flubendazole kill nematodes or anything else you were using it for? The scoop is very small right? ... close to 1/16th or 1/32nd teaspoon?

Sorry, not familiar enough with this ATM to help.