I've been in Legends bar, and it's ok to take kids etc.....they have "reps" who will put on shows etc for kids. The bar itself is ok, with pool table and sky tv and is quite roomy...got a good brekky there too. If you are looking for pubs near to your digs (Ficus), i'm afraid your going to be limited....."Nik and Diane's" bar is nearby (beside Los Carmenes Apts) and has received good reviews on various sites (heaven knows why...the pub itself is the size of your living room, and although Nik is a nice guy, he can't sing for toffee...most of the clientelle were 55+ Cliff Richard mob) There is a small bar facing Legends (facing the entrace on the street which your apts are on) again, wasn't a big bar, but seemed friendly enough...footy etc. There is also a bar in the square facing Legends (just to the left) with music etc, you could give it a try. On the whole, you are going to be limited if you want to remain within walking distance of Ficus...but if you don't mind that then you i think Legends will be your best bet.
"Cactus Jacks" may be open late too....but i would strongly reccomend that you do not go there for ANYTHING. We went for a sandwich during the day, and the place was filthy...i mean FILTHY....the tablecloths were sticky as was the floor...filthy stained menus etc, and Pam saw a dozen or so creepy crawlies in fem toilets....on walls and floor....so be warned!
If you can manage into the centre of Costa Teguise, that would be better as you would have much more choice of some great places...there are many there! I hope you find something that will suit...enjoy your hol!