I picked up a pair of ancistrus sp.3 on saturday and the female is gravid. I originally put them in the 20 gallon q tank, but there was a .25 ammonia reading in it so I put them straight into the 29 gallon where there is a cave for them to do their business. With any luck I will have baby bristlies swimming about. On a side note, this pair has got to be the biggest ancistrus sp.3 I have ever seen. They are at least 5+".