chemical reaction?

[mandarin man]

Hi guys,

Have you ever heard of such things called chemical reactions when different additives or supplements from different brands mixed together in the reef tank? I heard this from the LPS store, he said it could cause a complete tank crashed....

This worries me since I used different types of additives and supplements in my reef tank:

seachem carbonate (KH)
seachem reef plus- calcium
brightwell magnesium
Kz AA, KZ coral snow, Kz xtra, kz potassium, kz sponge power.

I just purchased a bottle of Brightwell Replenish (trace elements) this morning and very reluctant to use it and have not used it yet.

Please advise or shred some light on this matter.

Thank you