Aquatic Plant Forum banner


6887 Views 22 Replies 8 Participants Last post by  dawntwister
Our tap water here in Wichita KS is very high in phosphates, and it is making a mess with BBA I have not been able to get rid of it. Should I use Phosgaurd to lower it (my phosphate tester only goes to 10mg/L but as dark as the solution is I am sure it is much higher than that) ? What should I keep the phosphate level at?? Doesnt plants need phosphates??

Should I just Phosgaurd and put the correct amount of phosphorous back? Please help me out here.
1 - 1 of 23 Posts
From what I have read I gather:
1st item that cause algae grow is lack of bacteria which occurs in new tanks.--It's not a lack of bacteria--it's the presence of NH4/NH3 (ammonia/ammonium). The bacteria consume the NH4/NH3. If there are not enough bacteria--there will be an excess of NH4/NH3--that will cause some algae spores to germination.

2nd is excess of light--Light is the accelerator and the brake. Pick your light and adjust everything else to it. If your knowledge and skill are up to snuff--light is not a problem. If they are not: Use less light.

3rd is fluctuating Co2.--Fluctuating C02 causes some spores to germination (like BBA). But generally it's not a 1 day fluctuation--it's longer term (1week or more). That's why DIY C02 users often times have more algae issues.

4th is low nitrates.--Not aware of this one other then BGA which isn't an algae. However, low/no N can cause growth to slow/stop...encouraging bad conditions that favor algae.
Am I right?

Is it possible that high phosphates can cause an imbalance which will affect the level of nitrates and or Co2?--High P04 can lead to the depletion of N which can cause growth to slow/stop..encouraging conditions favorable to algae. But High P04 in and of itself can create a buffer, so it is best to keep it within the generally acceptable range. In other words: more is not necessarily better.
1 - 1 of 23 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.