...and I hope that you didn't click that link to tell me that my tank is not cycled.
I have more problems than just that though, and is related to a previous thread regarding a problem that is just getting worse. Here goes:
30 Gallon FW tank
pH: 7.3 (Up from 6.8 over last two months, checked at same time as always)
NitrAtes: 0 (down from the usual 20ppm before weekly water change)
Phosphates: .25ish (now controlled from the previous month of 10+ppm)
All tests done using API Liquid test kit, pH confirmed using a different brand as well.
x3 Black Phantom Tetras
x5 Von Rio Tetras
x5 Gold Barbs
x1 Sunset Platty
x3 Cory Catfish
x2 Assasin Snails
x1 (or 3) Ammano Shrimp (1 definit, two I have not seen in a few days)
I use two Ehiem 2213 filters with the flow reduced by taking off the end cap of the outflow pipe, flow is good, not excessive. Added the 2nd filter last week due to outbreak of something nuts and trying EVERYTHING to control it. See below.
Temperature remains at 78.
x2 T5 HO lights 1 @ 5000k and the other @6500k ran about 8 hours a day.
Gravel Substrate, multiple live plants, and two driftwood pieces.
Tank has been cycled 5 months.
Here is my issue:
#1 Algae or Cyanobacteria. See my previous post and pictures below regarding this stuff. It won't go away. It's a green goo and everytime I clean the stuff up it comes back days later with a vengence. Now, it has bubbles growing on it. What is this stuff and how do I control it?
Tried adding the extra filter. Reduced phosphates using Liquid Phosphate remover. Only fertilizing my plants with Flourish Excel until this stuff is gone (although there are 3 Flourish tabs in the substrate). Picture of phosphate remover below. It removed the phosphates (used 1mL / 24 hours over 5 days).
#2. My usual reading of 6.8 pH is now 7.3, not too big a deal I don't think. But Nitrates is at 0ppm. Nothing changed in my tank other than reducing the phosphates and adding the filter. No mini-cycle either. I know how to use these tests.
Please help. Doing a water change now so I will read your replies as I do it.