[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
KH and hair algae, valisneria
- To: Aquatic Plants Digest <Aquatic-Plants at actwin_com>
- Subject: KH and hair algae, valisneria
- From: "H. Hoekstra" <hugo at greed_nl>
- Date: Tue, 16 Mar 1999 00:19:11 +0100
- In-Reply-To: <199903140848.DAA00228 at acme_actwin.com>
>Date: Sat, 13 Mar 1999 17:01:14 -0500
>From: cwells <cdwells at concentric_net>
>Subject: GH and hair algae
>All though I've kept aquariums for a long time - I've been serious about
>plants for only about the last year and have learned a lot on this
>list. I have a 120G plant tank that I've been having trouble with hair
>algae in - BBA and from my algae key what looks like Rhizoclonium or
>perhaps Cladophora - a coarse, kinky, stringy, nasty algae that my SAEs
>don't touch.
>I have lots of test kits but just recently got a KH test to supplement
>my GH kit and found that my carbonate hardness is next to nothing coming
>out of the tap (1dKH) and even less in my plant tank. Some of my plants
>like crypts are doing fine buy my vals and sags are the pits. I plan
>to get an iron test kit soon. (looking for resolution on this thread
>posted recently as to what is a good affordable kit)
>Any ways my question is -
>Am I correct in assuming that the low KH is a limiting factor on the
>growth of plants in the aquarium and is it contributing to the hair
>algae?
>Any related input welcomed!
>dGH ~ 10, dKH < 1
>Ph ~6.5 but was lower when the hair algae started.
>Chris Wells
>cdwells at concentric_net
Chris, I don't think a low KH is contributing to you hair algae growth.
My KH is between 2 and 0 (my test kit can't even measure that low) and I
have no hair algae problems. I don't know if a low KH is limiting plant
growth, but I can't grow Valisneria either. But I have to say that the
petshops here only sell bad quality vals, crushed, with rotting leaves,
and I stopped buying them when they told me that 'they're seasonal plants,
which are short lived, like flowers'. That's a nice way of saying 'buy some
new every month.' But there is more to it because the incidental runners
are undamaged and die off. I think our vals are doing bad because I read
they like alkaline water. (my ph is about 7)
Hugo Hoekstra