Question About Dosing My Low Tech

mexicatz

Junior Poster
Feb 10, 2015
85
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My tank is low tech non co2 moderately planted with crypts, anubias, and marsilea. I figured aquasoil would be enough for ferts, but should I be dosing a small amount through the water column?

Not sure which nutrients will be needed with aquasoil. I have seachem flourish, Kh2po4 and kno3. Is just flourish and maybe a tiny amount of kh2po4 enough for a tank with plants like these or can I get away dosing nothing?
 

mexicatz

Junior Poster
Feb 10, 2015
85
1
8
I'm at about 5 nitrates should I be bumping it up to 10-20?

Not sure if you know, but I have a little bit of BBA and seen it can be reduced by doing water changes after lights out. I've been leaving my lights on during vacuuming, turn them off, then add the water. Would the plants still be photosynthesizing a couple minutes after lights out and use the excess co2? I think I'm supposed to be doing the vacuum and addition of water a larger amount of time after lights out.

Also, I had plants come in with a tiny amount of BBA and now other plants have a tiny amount before I could kill it with excel. Would it have spread because of the incorrect water change procedure or is it likely my lighting level? I lowered my par to around 20 from 35-40 and not sure if I needed to.