My Lacerdae lived with those malas for sometimes already and they are similar size except the smallest one about 3.5 inches that my Lac went and ate it in after few minutes introduced into the tank. They were most of the time stay in open spaces so I'm easy do head count everyday

thing changed when I introduced the Aimara, malas went into hiding mode (see the original tank setup) and I hardly see them out but they still out here and there for food, the Lac stay out in open space but opposite with the Aimara. I decided to do/re-arrange my tank this weekend and I found out there no more malas left in my tank...what's happened to the Lac you already see in my first post

In the end I would say my mala/lac community went pretty well until I introduced the Aimara but only because it's impoosible to find a 5~6 inches Aimara for sale, I'll setup another Lac community sometime later this year or might be next year

*About cover* I usually don't use any cover/lid on any tanks, but since I thin out my nature pothos top cover I DIY a temporary cover frame until my pothos take off and again

thanks for the warning though.