Who Gives A Fish Forums

I'm with creek on this. If everything else checks out, it's probably a nutrient thing. Try a balanced fert like Thrive or Easy Green. They've worked wonders for me.

That sounds rough. I've had similar issues before, and it turned out to be a lighting problem. How long are your lights on each day?

I've set up my old 25-gallon cube tank again, 18" x 3. After a thorough cleaning, I replaced the substrate with sand and replanted the surviving plants. Unfortunately, I'm now dealing with another cyano issue in this tank.

From what I've read, the main culprits behind cyano are light, nutrients ...

I've dealt with cyano outbreaks before, and I can tell you that it's not just a matter of wiping it off the surface. The bacteria actually attaches itself to the substrate, plants, ornaments, and even the glass, creating a film that helps it stick around.

You can try using a product like ...

I'm back after abandoning my 25-gallon tank for 3 months. I'd taken the fish back to the store, but left the plants behind. A friend kept the tank topped up for evaporation, but that was it for maintenance.

When I returned last weekend, many plants were still hanging in there, albeit not exactly ...