Hi Ms. There are many good brands of plant fertilizers. Shultz Fertiilzer can be used on indoor and outdoor plants, but follow container directions. Never exceed dosage.
Are your house plants flowering or foliage? Toni

Foliage

What works for me..The best!!
"Foilage Pro" from Dyn-gro and, "Osmocote with minors" from Home Depot. Then inculctae some "FE" or Fish Emulsion in between.;-)

Eleanor's VF-11 or homemade beer fertilizer. Just run a search for "beer fertilizer" It will come up quite often in the hoya, C&S, and houseplant forums. I also use fish emulsion.

In my estimation, the brand of the fertilizer is pretty insignificant. They are all comprised of a short list of the same salts if they are chemical fertilizers, just in varying volumes - the volumes being far more important than brands. If the fertilizers are organic in their composition, nutrient delivery will almost certainly be erratic and unreliable, due to the fact that delivery of nutrients depends entirely (except in the case of urea) on soil microorganism activity - which varies widely due to generally adverse cultural conditions encountered in container culture. When considering organic products, ingredients AND analysis are each more important than brands as well.

The closest ratio to what plants actually use that you'll commonly find available is 3:1:2. The Foliage-Pro 9-3-6 that Mike referred to is a 3:1:2 ratio fertilizer and happens to come complete with the secondary macronutrients and a full complement of micronutrients - a very good choice. You could also select any of the commonly found fertilizers (like Miracle-Gro) in either a 24-8-16 granular soluble or 12-4-8 liquid. The most important nutrients these fertilizers lack are Ca and Mg, but these are generally included in the dolomitic lime almost all commercially prepared soils are pH adjusted with.

Sorry to mention it, but are those using ELEANOR'S VF-11 PLANT FOOD aware that the analysis of the NPK of this product is only 0.15-0.85-0.55? Note the decimal point. It has only 15/100 of 1% nitrogen. Drinking water often has more nitrogen in it than that. It also lists 0% of the important nutrients calcium, magnesium, sulfur, boron, chlorine, cobalt, copper, iron, manganese, molybdenum, nickle, and zinc in it's analysis. Goldfish bowl water diluted 10:1 with tap water would have an NPK analysis somewhere in the same neighborhood as Eleanor's stuff.

Al

Maybe that's what it is? Fish bowl water is also an excellent fertilizer ;) Never had more beautiful plants than when I had a fish tank.