Quote Originally Posted by cnd411
Most growers suggest topping with just water.

really?

I always thought the opposite.. especially since all books I have read say to change the resivor..

that being said..I always top off..
especially when the plants are late into veg and flowering.. they consume so much water and nutrient that I have never had a problem..

Although I hate to admit it, I like tormcookers thoughts about adding 1/2 strength.. and just build up...

I have always heard what Zandor said.. change resivoir every 7 days...

NEVER done it myself but....

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either way, you should keep a close eye on your plants.. they will tell you what they need


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