Hey, I have a 335 litre tank where I have cribs, keyholes, a jack dempsey, mackerel barbs, a snail, a golden nugget pleco (Dyson) and a clown pleco (Graham). Trouble started when Graham got popeye so I bought a seperate 15 litre hospital tank to nurse him back to health. A couple of days later I noticed some babies in Graham's tank. Dyson and Graham have gotten along fine, which makes me think that there is a slim chance that they have had babies. I then spoke to Maidenhead Aquatics (a popular fish retailer) hoping for light on the situation, and the manager said that there is hardly any possibility of that happening as Clown Plecs and Golden Nugget Plecs are different species. This still leaves me puzzled so I thought I'd ask a forum. I've had baby cribs in my tank before and my keyhole is pregnant, but these babies don't look like those fish and I doubt they would have been picked up by the net when I transferred Graham into the other tank. Thanks for the help!