@ LOC NAR - Well, I was recommended to get a 40g resv. and from some of the things I've read that it isn't necissary and I could have been just as good as with a 20g resv. In fact, I don't even really know what the benefits of having a 40g resv. would be other than that its a big pain in the ass to fill/drain and clean.

I would like to ask another question regarding the size of my resv. though...the water level doesn't drop that drastically in this size resv. so I don't really have to worry about the pump not being submerged when its flooding even at the end of two weeks. I have not been topping this resv. off or adding any nutes...I just drain/fill every two weeks. I was reading something in the faq. that recommended topping the resv. off throughout the week with just PH balanced water and then at the end of the first week adding 1/2 strength nutes to the resv. With 4 tsp/gal. which is what the bottle recommends for Ionic Grow/Bloom that is like 2.917 cups of nutes at 35gal. This last week I did 3/4 nutes which was 2.5 cups for 35gal. Now, should I be adding 1/2 strength nutes for 35g at the end of the first week or not? And, should I be periodically putting more water throughout the week in resv. even though its so big?

I do not have PPM meter right now so I've no way of knowing how much nutes are in my system because where I got my info from didn't recommend me purchasing one. Also, after reading in the faq. about nute deficiences the three small plants sound alot like a Phosphorus deficiency, and the five larger ones sound something like a Potassium deficiency. So am I not giving the plants enough nutes because I only give them nutes every two weeks in the 40g resv.? The thing is though when I dropped the nutes to 3.5 tsp/gal. instead of 4 tsp/gal. they are not really growing much but they aren't having the hardcore tip-burn stuff going on last week. The smaller plants are still having white/yellow tips at the very end and the lower leaves are showing browning on the tips but the plants are actually looking healthier by far than they were last week after dropping the nutes to 3.5 tsp/gal. instead of 4 tsp/gal. but I do think that because I've been using 6 PH I may have also been locking out nutes as well, I just don't know if thats the case or not. The PH in the resv. is now at 5.6.