Had to restart the 20H again. As it turns out, capping fresh Aquasoil/powersand with bdbs is NOT a good idea!
The tank's had a wicked green water bloom for the past 6 weeks. The slightest disturbance would bring it on, like pulling 3 stems of something up. In the beginning my little portable 5 watt UV would knock it out but for the last month it wouldnt even touch it. So bad you couldnt see 3" past the front glass.
So I decided to just restart it.
Inspired by @Xiaozhuang
's low NO3 dosing routines, and @Saxa Tilly
's recent results in the Dutch and Kill Tanks
, Im gonna try and see if I can duplicate their results dosing NO3 around 15 ppm/week.
The new substrate is all BDBS with a fairly heavy application of Osmocote+
Put down just enough sand to cover the bottom first to keep the O+ balls from rolling around. Then top it off with the rest.
Light is four T5HO with a sinlge reflector. Par at the sub is about 95
NO3 - 2.5 ppm
PO4 - .8 ppm
K2SO4 - 1 ppm
Fe - .1
Mn - .03
B - .03
Zn - .03
Mo - .001
Cu - .0015
Ni - .0003
Usually do water changes every 6 days in all tanks, so those amounts are dosed 6x between water changes.
Also 15 ppm K and 7 Mg 1x each week after a water change (tap has 35-40 ppm Ca)
I believe this is pretty close to Xiaozhuang's daily routine (sans a little urea and uber rich soil). For weekly totals it's almost a match to Vin's current routine in the 180.
Im also starting this routine in the Aquasoil 50. Up until now macros were about the same dosed 1x week after water changes. Most things doing well, some arent, but that's a story for another day.
Plants are a mixture of "nutrient hogs" and a few Lythracae sprinkled in for good measure.
Three days old
Left side is Staurogyne purple, Ludwigia sp red, Clinopodium brownei, Penthorum sedoides, one Pantanal, in back three wallichii and three Ammania crassicaulis...and a nana snow white Anubias (thats color on the lower leaves, not algae
Right side is Blyxa novoguineensis. This plant was blood red when I got it from Vin about a month ago, 35 ppm NO3 per week quickly took care of that. We'll see if it colors back up with lower levels
Other plants over here are Ludwigia senegalensis, Rotala mini butterfly, a few Rotala sunsets, one tiny sprig of mac variegated you cant really see, in back is Ludwigia palustris
Fissidens fox log is there to give a baby bristlsnose pleco a place to hide and some wood to gnaw on. He's under there now you can barely see the tip of his nose
So....we'll see how it goes!