Pelvicachromis Pulcher and tankmates.

Your water sounds like it would be great for kribs. Make sure the serpaes don't chase them around, but in that big of a tank you should have no problems keeping them and probably will even get them to spawn.

I think they will spawn at a pH that high, but most literature sources seem to promote an acidic one. No certain temp., just keep it between 78-82. That should suffice. Food would be whatever they eat, though live foods seem to entice them to breed more. I'd feed alot of frozen brine shrimp and maybe blood worms with a staple pellet diet.

this serpae's are gunna get beat up..not vise versa....the cories are in fer sumin different too..they WILL breed though.

In a tank that size I really doubt you'd have much problems. Someone might get knocked around, but not killed. And the others will learn to stay away from that corner of the tank, which is where I would place your clay pots or whatever you're using as caves.

i have 1 pair of kribs in a 55g. you can click on my tank specs below to see tank mates.

i started with 2 females in this tank. the dom beat on the sub pretty bad. a week later, i added 2 males. the fireworks really started then. after the dom/sub pairs were determined, dom pair would go out on the prowl almost seeming to hunt down the subs just to give them a thrashing. i gave the dom pair to a friend and kept the sub pair.

they live well with the other tank mates, but when breeding time come around, things change. they dont intentionally harass anybody, but the guard their tree stump vigorously. i have a bristlenose pleco that doesn take anything off of them and a CAE that is much smaller than them, but doesnt take anything either. the pleco seems to stumble his way under the stump occasionally, and that freaks the parents out pretty bad. eventually, they run him off.

kribs are easy to breed. ive done nothing to encourage it in my tank and just yesterday, they presented what i think is their 7th brood since november. i have baby kribs out the wazoo. most of them are growing out in a 10g. i hope to get them their own 20l or 30l by the end of summer.

good luck with them. check out www.thekrib.com for info as well as searching these forums for info.

edit - you may have problems with that many in that tank, but i believe there are other people on this board who have had success with multiples in a tank about that size.