Correct. No need to dilute Valbazen, it's a safe wormer. Besides, it's easier to administer 1/2cc orally rather than 2cc's orally (diluted) to each chicken.
I've tried the treated bread trick before with paste wormers. You have to pen them up. Then release one bird into another pen and toss a her piece of treated bread to eat. Sometimes a separated bird will eat the treated bread, sometimes they wont. Then you have to release her out into the yard...
I've never seen it at TSC nor any feed store. I've had to order it from Jeffers. Our feed store here just started carrying safeguard liquid goat wormer at almost $28 for the 125ml bottle, Jeffers charges about $17+ $6 shipping for the same bottle. I guess it depends how badly someone needs...
You've got the right wormer in the pic. I dont recommend putting it in water. Administer it orally to each bird. If you have alot of birds, split them up into two groups and keep them seperated. Dose one group one day, then the next group the following day.
If you put it in water you dont know...