Has anyone ever used plain old RODI (or even tap for that matter when aquascaping with Marco E-400? I'm outta the solution which orig came with the kit but I still have plenty of the mortar?
I recall it having a smell similar to/if not exactly like ammonia when mixed with the mortar. Not super strong but not "tame" either. Thanks Pauls will check it out.
I also agree on the hydraulic cement comment as well. Might just EHfff it and give it s shot! See what happens. Will report back LOL.