Cycling tank for shrimp..add minerals later??
Soo im cycling a tank that will house crs,oebt,and "better" rcs. Rather then adding in fluvals mineral supplement into the tank water while the tank cycles without any livestock,pretty much wasting the minerals,i decided to cycle the tank with just straight ro water. Now the question is when the tank has cycled and there is no ammo or nitrItes can i just do a huge waterchange and replace the tank with a pre-made batch of ro/mineral water or do i need to do gradual water changes until the parameters are where they need to be? I understand doing this with a tank thats already established is necisarry to reduse stress on livestock. But if there is only plants in the tank is there any reason i cant just change the water all at once?
Also on a sidenote,i finally got a tds meter and went test crazy on all my tanks and water sources. everything seems ok except my tds in this new tank has gradually increased some +30ppm in the last week or so. is this normal? i do have some questionable rock in the tank but i tested the rocks in a cup of water overr a week and half (gh,kh,ph no tds at the time) and nothing changed as far as those readings are concerned. so is it possible my tds is being raised by leaching rocks even though they didnt seem to alter any other parameters during "test". Is this going to be a problem?
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