First question; I use sugar yeast DIY or my CO2. I run the gas tube through a DIY bubble counter before it goes into the tank. I use it more as a pre-washer to (hopefully) wash out some of the sugar crystals migrating through the gas line. They don't seem to make it past the pre-washer so I guess its working. My hope is this also washes out some of the alcohol vapors that I'm sure are also mixed with the CO2.
Anyway, this line ends up under a power head and the CO2 gets ground up by the impeller before it gets spit into the tank. I have 2 of these, one in each back corner of my 55 gal tank. This seems to work well because it drops my PH from 7.8 out of the tap, to 6.8. The only thing I don't like is it makes my tank water look like club soda. All those little ity bitsy bubbles last for about the first week or so of a new mix. It will slow down after the first week until I have to mix up a new batch on week 4.But I do notice better plant growth when the bubbles are going good.
The question is, is there anyway make those little bubbles less noticeable? They kind of bug me.
Next is a nitrate question. Iíve read here most people struggle to keep their nitrate level up around 20 PPM. I seem to have the opposite problem. Iím happy when my nitrate level is under 30. Iíll do a 30% water change twice a week and it will come down to 15 to 20 PPM. I can keep it there as long as I donít dose any Fluorish, once I dose, my nitrate starts to clime within 1 hour of dosing. Iím only adding 1 cap full a week, as recommended by the instructions.
Does Fluorish cause nitrate to go up? Or can it just be putting the test off? The test kit Iím using is Aquarium Pharmaceuticals.
The really odd thing is, my ammonia and nitrite never go above 0 to 1 PPM. So I donít understand what can be driving up my nitrate. Iíve tested the tap water and it tested out under 10 PPM. Other then that my plant growth is great, I have to trim once a week and my fish, frogs and shrimp are all doing great.
OK, OK, so it was 3 questions. But thanks for reading if you got this far.