<g> Thanks for the reminder John... I just reread what Al wrote and i see where he mentions that he used the conductivity reading as an indicator of hardness levels. I used the reagent kit to test my kH and gH. I was just curious myself to see if there was a difference there also... Also, i like to run around from tank to tank with fish geek stuff like a TDS meter. I'm still trying to absorb the differences between kH and gH, let alone what exactly the TDS meter is telling me LOL... later, christine danville, CA > FLAG!!!! > > TDS meters are not what you need in this case. All these plant additives > release Fe (Iron) into the water at various rates. Since one component of TDS > is based on conductivity, you are not getting a linear measurement of General > Hardness due to the increase in that conductivity by the Iron. Use a proper GH > test kit. > > john > > On 24-Apr-01 mopargrrl wrote: > > I'll bust out the Hanna TDS meter and see what it says... One problem > > with the Profile is that is is very light and floaty, makes it difficult to > > get plants to stay in the substrate until they get roots. > > > > You can use plain gravel/sand, but you'll have to supplement root > > feeders frequently. If you are going low light, low maintenance > > style, fancy substrates are helpful but not necessary. Java fern, > > anubias, and java moss, three of my favorites, don't even need > > substrates. Another thing to try is to pay for some of the expensive > > substrates like laterite or Flourite, and use pots for the plants. > > That way you don't need to use much expensive stuff. > > > > later, > > christine > > danville, CA > > > > > >> The aquatic planting soil is suppose to be the same stuff as the soil > >> conditioner..the soil conditioner on the Shcultz page says it is inert > >> also..also I just used a condutivity meter not a reagent kit...the stuff > >> looks nice in the tank....but changing the water chemistry is not > >> good.....just looking for something simple to grow some of the easy > >> plants....looking for ideas from others who grow plants in soft water and do > >> not go the super substrate method..if there is such a way... > >> > >> AL ------------------------------------------------------------------------- This is the apistogramma mailing list, apisto@listbox.com. For instructions on how to subscribe or unsubscribe or get help, email apisto-request@listbox.com. Search http://www.digital.com for "Apistogramma Mailing List Archives"!