Algae/ diatoms after water changes

fisheez

Member
Fully cycled setup. Hello I've been having some issues in my tank where every time I do a 50% water change there seems to be diatoms throughout on the ornaments and glass after a few days. Tank ammonia levels are 0 nitrites 0 and nitrates around 20. I usually vacuum the tank every time I do a 50% water change which is done once a week on 120 gallon. It's easy enough to clean off but a pain to take ornaments out every week. I use regular tap water and only have a fluval 306 and 2 sponge filters. Any other information I can add to help lmk.
 

NevermindIgnoreMe

Member
fisheez said:
Fully cycled setup. Hello I've been having some issues in my tank where every time I do a 50% water change there seems to be diatoms throughout on the ornaments and glass after a few days. Tank ammonia levels are 0 nitrites 0 and nitrates around 20. I usually vacuum the tank every time I do a 50% water change which is done once a week on 120 gallon. It's easy enough to clean off but a pain to take ornaments out every week. I use regular tap water and only have a fluval 306 and 2 sponge filters. Any other information I can add to help lmk.
How long has the tank been running? New setups often have diatoms at the beginning, but eventually it stops coming. I had a ton of diatom in my tank after I added some more sand because of the silicates it added to the water. I bought some ramshorn snails, I no longer have any diatom. You can get some for cheap from here or ebay, the come in lots of colors.
 
  • Thread Starter

fisheez

Member
NevermindIgnoreMe said:
How long has the tank been running? New setups often have diatoms at the beginning, but eventually it stops coming. I had a ton of diatom in my tank after I added some more sand because of the silicates it added to the water. I bought some ramshorn snails, I no longer have any diatom. You can get some for cheap from here or ebay, the come in lots of colors.
Over a year
 

NevermindIgnoreMe

Member
fisheez said:
Over a year
Mine was a few months over a year when I added the sand and got the diatom explosion. You haven't...added any sand or anything right lol? I still would just get some snails. They are great little cleanup crews!
 

The2dCour

Member
fisheez said:
Fully cycled setup. Hello I've been having some issues in my tank where every time I do a 50% water change there seems to be diatoms throughout on the ornaments and glass after a few days. Tank ammonia levels are 0 nitrites 0 and nitrates around 20. I usually vacuum the tank every time I do a 50% water change which is done once a week on 120 gallon. It's easy enough to clean off but a pain to take ornaments out every week. I use regular tap water and only have a fluval 306 and 2 sponge filters. Any other information I can add to help lmk.
Does it happen if you do a smaller water change?
 
  • Thread Starter

fisheez

Member

The2dCour

Member
fisheez said:
I'll have to try that I suppose
Only reason I asked is because you say you get this explosion right after the water change? That's a pretty significant water change, so maybe making it smaller would introduce less of whatever is causing the population boom and it wont take hold.
 

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