PH help plz

ok i always water with my water phed at 6-7 and for some reason my runoff reads in the 4-5 area. any ideas as to why its doin this

what are you growing in?

soil. black gold coco mix

mcpurple said:

soil. black gold coco mix

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no Lime? I like the pro mix with the lime added to buffer the PH, how much runoff do you allow? does the soil dry within a week or is it a slow one that only needs watering every other week, it could be simply bad compacted soil not allowing enough room in the soil for it to properly dry out and if its staying moist long periods can be an issue. Are the plants growing at all? It may be false readings if your just using test strip. Give us some more info

super2200 said:

no Lime? I like the pro mix with the lime added to buffer the PH, how much runoff do you allow? does the soil dry within a week or is it a slow one that only needs watering every other week, it could be simply bad compacted soil not allowing enough room in the soil for it to properly dry out and if its staying moist long periods can be an issue. Are the plants growing at all? It may be false readings if your just using test strip. Give us some more info

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Soil pretty much always changes your ph.. if it has nutes in it.. it will change it.

It's not too big of a deal, unless you start getting nute lock, dont worry..

the soil is organic with no nutes in it. it drains perfectly fine. it is moisture holding soil but it drains fine. and takes 4-5 days for soil to dry out. and i only tested the runoff because i did a flush cuz i thought i might have a build up of some sort cuz the leaves were yellowing. and the plants are growing great but the leaves are startin to turn yellow in the middle of the plant. and i use the drop lets to test the ph so its pretty accurate. its not hard to distinguish the coloring. and no lime. also their is perlite added to the soil.

bump...................

bump............... any help would be appreciated