I have been working on this for 1 1/2 yeras and at this spring my pleco facility will be finished.
Thought Í could share some images with you.
I have breedinggroups or pairs of L15, L20, L30, L134, L239, L397, H. contradens, L201, L340, L333, L200, L128, L124, L114, L91, L240, L241, L264, L107, L71, L14 and probably some more. And P. motoro par (that probably have been mating)


Stingray tank




I use central filtration system; 15% of the total water volyme...
Cheers
Cristoffer