“An excellent addition to the Bi2hop. Filling the tank via the top-fill cap is just as fiddly as unscrewing the standard bottom-fill cap, needs to be done with the tank practically lying flat, and can be messy; as such, I still fill the Bi2hop as if it had the standard bottom-fill top half fitted. Nonetheless, I'm still very happy with my purchase - the atty looks much better this way, and the likelihood of accidentally breaking the glass is vastly reduced.”
“Works, but as others have said, you need to get your technique honed, as can be a bit messy otherwise. I found best to tip horizontal and not to overfill. Looks good though, and great tolerances.”
