I don't have dinos, but I stop in now and then to see how the fight is going. Today I was reading a thread here and on another forum about micro bubbling, basically making lots of very fine bubbles at night when your lights are off as a means of cleaning the tank of organics. Some users had reported that it was effective for them against dinos. That is when I thought of you guys
The technique comes from Elegant Corals. All it takes is a wooden air stone, air pump and a timer. For dinos one user mentioned he also dosed bacteria in addition to the micro bubbling. No promises, but if you have tried everything else ...
Dennis