hey bro, the last time i tried to catch my algae blenny out,
i was lucky to find its resting place,
on top of my frag rack
about 3hours after lights out,
with my net ready in one hand, already partially submerged in the water,
i turned on the lights and net it out..
it had no time to react...
after i put him into the sump,
he was still in a daze..
but the problem is finding his sleeping spot..
which might be quite difficult for a 5ft tank like yours..