Originally Posted by livebearerlove
When you scrape it... do you use a rough sponge/green scraper, or a razor?
This is worrysome...:
Here are the pre-WC readings:
Total Hardness 50 mg/l
nitrate 10 mg/l
nitrite 0 mg/l
Your ammonia should always be 0.....
I believe you are putting a bandaid on a real problem rather than solving it. If its on the glass, danfia wont help you. seriously consider it is cyno. Honestly....
A picture would help... no matter the image. I take all my photos with my phone.
Those readings were about a week after starting the tank last month. Shortly thereafter ammonia & nitrites both went to zero, with nitrates ranging from <10 to zero. Lately it's been zero across the board, and is the same this morning. I'm guessing the algae & plants immediately suck up any nitrates, so there's nothing left in the water column to show up on tests.
I did try to take a pic for you right now. but in daylight all you get is reflection. I'll have to do it tonight, and turn the lights back on as I've got them down to 6 hrs a day.
I use a plastic scraper or algae scrubber for the green dust algae on the glass, and it does come off with some elbow grease. But that releases lots of algae fragments into the tank that are hard to vacuum up. Like I said, I've only done it on the front because the snails & otos are doing a good job of eating it, and I'm guessing if I remove it all, that'll just leave more nutrients (and ambient light) to fuel the green water. Not to mention releasing even more algae debris into the tank to decompose & make matters worse.
There's no sign of hair or filamentous algae. The otos seem to have eaten it all up shortly after they arrived. Nor do I see any "green slime' on the bottom that would indicate cyanobacteria. I'm guessing there are probably a lot of diatoms, but that doesn't concern me much, and the MTS are going to town on it.
So any thoughts on my plan to do a 50% WC with a deep clean, continue dosing Liquid CO2 & Stability, and add a bunch more ghost shrimp to eat any decaying algae & plant matter? Re-reading Dennis Wong's excellent piece on algae, it seems a 3-5 day blackout will cure just about any algae issue. So I may try that when I'm away this weekend. And if all that fails, resort to the nuclear option of H2O2 whole-tank treatment.
Thanks for your advice on this. I realize newbie algae issues aren't sexy as EI dosing or PAR values, so appreciate your time.