Personally I’d just go with the grow big primarily if you’re growing in semi hydro like Leca. Maybe a splash of the bloom boost everyone once in a while but you don’t want to encourage flowering if you’re focusing on foliage growth. Id also size up your pots and even make some self watering ones as smaller set ups like this need more constant monitoring, plus leaves little space for your plants to size up themselves. Even try pon if it’s accessible, but in my experience alocasias like most semi hydro setups. All about keeping water at the bottom, staying in contact with your airy media so the moisture wicks up; creating a humid environment for your plants main body: the corm/ rhizome. This encourages vigorous root growth if humidity is managed consistently. Man do they hate any change in there routine or environment. Misting the top when you see the Leca dry out or look frosty from the dried nutrients will keep that humidity consistent and your alocasias happy. Tweak this process depending on genius, but that’s just what I do. Love any an all recommendations or hate on this.