aquarium 2 x 2560 liters of help

hello, I'm new to this forum, I come from Polish and my English is not too good, I apologize in advance for the mistakes of language
Hi I have two aquariums at 2560 liters with dimensions

length-321 cm



Height-80cm



width-100cm



15mm thick glass





The aquarium will certainly be nr1 cichlids in Lake Victoria as a no. 2 I have no idea on the fish in the aquarium

I even thought the combination with each other two tanks together is feasible to me gave me 5120l and he kept there only fish from Lake Victoria

I do not know what to do, please advice



I will describe one more filtration

600l hydroponics certainly over the whole bottom of the plenum cleans bacteria do with nitrates and 2 two barrels as a mechanical filter.

should be enough!



Lighting:



6 or 150w metal halide LED's on the tape but rather halogens



Heating:



certainly "home heating central heating furnace" and 1000 watt heater support.



I've always dreamed of a big tank and 6-meter giant was that fulfillment of my dreams.



What do you think of the combination of both aquariums together?

whether it is better to do two separate aquariums and biotypes

aquarium. Picture 1 2560l x 2 identical
picture 2 and 3. 800l aquarium that I have in 5 years

Please also a do the trick which fish in Lake Victoria can keep in such a tank and how many pieces

and what do you think about the fish in Lake Victoria
These fish always fascinated mie, unfortunately these fish are rare in Poland, it is difficult to find them any information.
What do you think glue two tanks together? and there only to keep the fish in Lake Victoria?
After gluing received 5,120 liters if I leave two separate tanks of 2560l
and create two biotypes of Lake Victoria, and something else?
And another question namely, how in the middle of the windshield to mask combining?
and that such a coupage can withstand?
Please advice and help