Okay. I’ve recovered my balance from my sick fish episode. Have watched remaining fish for a month, and no issues. I’m going to assume that I did not, in fact, have mycobacteriosis and go on from there. Bought myself a pair of upper-arm length gloves to work in the tank, and on we go.
The tank was doing well after installing the in-tank clarifier, but these days, I have green algae growing on slow-growing leaves of plants, like my buce. Question for my gurus: in general terms, which imbalance causes excessive green algae? Like, too much light, not enough CO2? Too much ferts, not enough light? Just a general way to head would be really helpful. @Greggz
Bump: I am also working at installing a Vecton 2 25 watt Level 2 sterilizer on the main tank, and have a Level 2 sterilizer on my QT tank. I donít expect it to defeat any and all diseases, but itís at least a help, I hope. My issue right now is to find a plumbing solution for the Vecton. I posted in ďEquipmentĒ but so far no answers. Iím going to cross post here, in case someone misses it over there.
I have a 120 planted rainbow tank that has gone through some bouts with first ich and then green water, so I pulled the trigger on a Vecton 2 600 and now Iím scratching my head on how to plumb it.
I was going to plumb in into the outlet of one of my two Eheim 4 Pro 600 canister filters. Currently, one is plumbed into my Cerges reactor (for CO2) and thence into a manifold that delivers the CO2 to the tank. Itís definitely the slower output of the two, because the Cerges tamps down the flow. Therefore, I had planned to plumb the Vecton thru the second canister filter output, which simply goes to a spraybar. However, we measured the ACTUAL flow coming out of the spraybar, using a stopwatch and bucket, and itís only at 144 gph. The filter is stated to have a max flow of 330 Gph.
(Full disclosure: One question that Iíve had and not thoroughly explored is whether a cause of the lowered flow is the result of the Eheim pre-filters that I have on both inlets to my canister filters. They do an excellent job of pre-filtering, and I like them because I disturb the bio field less in that I donít need to service my canisters as often. I really should try taking them off and seeing what the spraybar flow is, but assume for the sake of this post that itís still not going to get to 275... just the spraybar itself has to be retarding flow.)
For the size of my tank, and my goals for my UVS (Level 2 sterilization), I am trying to turn this tank over thru the Vecton at a rate of 2.5-3 times per hour. Since there are about 110 gallons in my tank (itís never full to the top), Iím therefore working for a gph of 275-330 gph. (I am also aware the the circulation of flow within the tank will play into effective sterilization, but I can handle that aspect well, I think.)
My question is where to go from here.
* Iím not eager to buy another canister filter... Iím not thinking there are many with significantly more output, and I only need boosted flow, not filtration. Unless it would be the NuClear filter, with a significant pump. Seems like these filters can handle high throughput. ANYONE HAVE ONE and can speak to it?
*. I donít think that plumbing a pump inline from the canister to the Vecton and back to the spraybar will work, and from all I read on this forum, it will be noisy.
* I would not mind putting a simple submersible pump in my tank (hiding it behind plants) but it would need to have some kind of pre-filtration ó like a sponge filter ó or else the UVS glass gets dirty and Level 2 sterilization wonít be happening.
* I could get an exterior pump, but am wondering how I would then prefilter...
Help? What options/methods am I missing? TIA.