Originally Posted by FlyingHellFish
1.So do you guys with hard tap water dose Micros? I read that Hard water would require more Micros, which doesn't make much sense to me.
2.How do you keep plants that require soft water per EI dosing?
3.Is there such a thing as over fertilizing with micros, and what results does this produce?
1. Yes, you should dose micros. Hard water will be high in primarily in Magnesium and Calcium. If you are wanting to dose EI, I would stick to the same recommendation for micros. In EI, you are "overdosing" on ferts to make sure that the plants always have plenty of what they need...and then you reset with your weekly water change so that you don't get into bad levels.
2. Well, that can be a bit of a challange. It will really depend on what type of plants you're talking about. Let's assume difficult, soft water plants. You'll have a hard time growing these using just tap water. The easiest solution is to not try to grow these
, but just above that is to purchase RO/DI water from your local aquarium store and cut your tap water with that to get to your desired GH level. 25% RO/DI will drop your GH by 25%, and so forth. Of final note, crypts do well in high pH/high GH water. I had a buddy with pH 8+, GH 10+ tap water that had some lovely crypt only tanks.
3. As I said above, in EI you essentiall "overdose" your plants. You are giving them more than you need to ensure they always have enough. There is another system, PPS, which claims to give plants exactly what they need (without water changes). However, yes you can add too many micros, however if you are following the standard EI instructions you won't get anywhere near to a bad level no matter what your tap water is.