I’m having issues with raising alkalinity with KH Plus. Does it just gradually rise? It’s at 7 at the moment.

We recommend to keep KH levels between 6,5-8,0. Please, do not raise KH more than 1.0 dKH/day as it may be dangerous for aquatic life. Please have in mind, that your aquariums' inhabitants constantly consume KH, so in order to rise the level, you have to dose more than they consume.