the afore mentioned Missus here,
Hmmmm... *What sort of blenny? how big is he?
We have been planning our tank with passive & small "nano" fish.
I think what we are trying to do just now is avoid overloading our bio load before we find a compatible skimmer for our 44g pent tank and fitted lid and other equip like heater & Coralia, etc.
http://www.austinree...ew-fish-44-gal/
But we'll pass on the cucumber....after our last adventure with one.