Well 2 males in a 4ft wouldn't breed. I split the colony into 2 3fts with a male each and they bred again.
Having troubles with females being none too gentle with wrigglers when they are in the log laying again. I didnt want to be tipping them out with egg sacks still attached but I might have to in future.
For those interested I checked the water while the girl was in the log this time. The tank hadnt had wc for a week. PH 7.4 (don't ask me why, maybe its more slate than driftwood keeping ph up), GH 7, kH 3, TDS 199. Did the usual wc with a tad less buffer in my rainwater, didnt seem to phase them one bit. There are 10 fry of assorted sizes in the frysaver.