Hi people im just asking a question about plant deficiency. My tanks a 3 gallon with low filter flow (betta tank), 3 arcadia arcpod 9W T5pc lights on 8 hours a day, co2 added by DIY two 2L coke bottles with bubble counter showing 1BPS steady being diffused by a rhinox 2000 in 1 corner and a Tetra areosol co2 in the other corner and the drop checker is light green, ive been dosing Seachem Flourish Excel at 2ml per day and 5ml after the weekly 50% water change, the liquid fertiliser im using just now is Nutrafin Plant Gro, it says to use 2ml a week on a tank this size but ive been adding 1ml a day with no problems so far but my stem plants leaves are out of shape when they are growing in (why i was adding 1ml a day) ive been looking at pics of deficiencys and think it looks like a calcium deficiency, my tap water is very low GH and KH so do i buy a GH booster and use as the instructions say to fix the leaves, should i cut down the amount of liquid ferts going in and how does the amount of flourish excel im putting in sound, sorry for all the questions but im still a newbie.