Lombaroi is almost as aggessive as Auratus, which are just as aggressive as bettalove says. You could say your tank is much to small, or you can say that you chose the wrong fish for your tank. I depends how you look at it.
In your shoes I would return those two fish and buy some more suitable Africans for a 30 gallon. If you get the rights species you can fit about 6 to 8 in your tank.
Some better options include Labidochromis Caeruleus, Iodotropheus Sprengera, Pseudotropheus Acei, and Pseudotropheus Saulos. Any fish starting with "Melanochromis" is not a good choice. Some Maylandias could work, like Estherae, but most are generally too aggressive for this tank. You can do a single Aulonocara specimen too, if you don't stock the tank too heavily, and provided you only go with less aggressive mbuna.
Brichardi, as mentioned, are the Tanganyikans, while the rest are Malawi. A pair of Brichardi would take your entire tank to themselves. One would technically work out, but a tank full of mbuna is not the most desirable environment for them.
The biggest drawback to cichlids are the amount of space they require. The smaller the tank, the more limited in species and mixing possibilities. 30 gallons is what I consider an absolute minimum tank size for even the least aggressive Malawis.
nothing escapes him but i think it would work if the right fish r chosen like brichardi r very agressive i have one and he was terrorizing all other fish and they had tons of room they were all very samll an inch at tops and they were in a 70g so i had to seperate them
