Not at all.Thanks that was what I was asking about. Did you have trouble finding a pump to get the water to the top of the wall. An is evaporation an issue.
I bought pump from Aliexpress for £8
Max height is 1.2m so it's enough for this.
Anyway we have a quite good choice on the market, there is no problem with it.
About evaporaiting: is a bit larger than normal aquarium, so i have to add some water in every 3-4 days.