Do not try to force a square peg through a round hole! -- assumes diameter equals length of a side.
You cannot force feed a plant. Those tabs are all-in-one and may only need minor supplementation... not a full dose of other nutes piled on top of an already full and balanced diet.
Plants look healthy, maybe a bit stretchy... so, on top of that, you likely need more light to justify feeding more, too. (* The longer internode could be genetics, too)
Want a boost? If not providing max DLI to plants over X hours... then you should add lights, not a high concentration of nutes.
If a nute product is too expensive, go elsewhere. You can find high quality agricultural products without a pot leaf on it that do as good or better job. do not overpay for nutrients. they are not special, they are more like generica prescription pills... as long as ingredients are the same, it is the same molecule being used. Ammunium nitrate is a rose, is a rose is a rose. etc..
see this with root hormones.. a simple acidic molectul indole-9butilic acid and a few other variations... a different label will never change the physical and chemical properties of a molecule.