Moving To Co2 + Ferts

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BigTom

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Hi all, I'm hoping you plantbrains can chuck me some advice.

Long story short, I've recently reclaimed my old tank that someone else had been looking after for the last 18 months whilst I was away. It was a low-tech planted setup and basically it's had no maintenance except water changes for the last year and a half. The guy looking after it had kept it in a window so it was pretty heavily infested with hair algae when I collected it, which is slowly diminishing through culling and being kept out of sunlight now.

Tank stats:

ViaAqua AR620 with lighting and filter built into hood
90 litres
24"l X 15"d X 17"h
2 x 20 watts T8s (8000k and 15000k)

Stocking:
Java fern, java moss, anubias nana, amazon sword, a couple of crypts.
6 Dwarf puffers, assorted cherry and tiger shrimps.

The lights are a pain as they're non-standard sizes (23"). The 15000k bulb seems extremely dim, I'm going to try and source another 8000k or lower bulb but they're hard to get hold of.

I've just ordered a cheap and cheerful Nutrafin CO2 fermentor and some Tetra Plantamin to dose with, in the hope of increasing the extremely slow plant growth and introducing some more varieties.

Given my lighting limitations, is there a risk of encouraging algae when I move over to CO2 and ferts? Whats the best way of minimising this? Do you think I'll be able to get reasonable growth out of HC Cuba, riccia or some other carpeting plant? Anything else I'm going to need to bear in mind?

Finally, as you can see in the pic below, one of my Java ferns has got huge and is causing shadowing problems due to it's position at the top of some bogwood, do you think it'd be a good idea to give this a really heavy prune? A lot of the larger leaves are pretty unattractive anyway, lots of black spots. Alternatively I might just saw the top off the wood and find it a spot lower down!

Recent tank shot (not very pretty!). The plec has been rehomed and the algae has subsided somewhat since then, although still somewhat present. Needs a full rescape on top of everything else:

ftse.jpg
 
first off nice tank! The slate is a nice addition.

For new, cheap tubes try lampsepcs.co.uk

A good write-up can be found here: http://www.theplantedtank.co.uk/lighting.htm

CO2 & fertilisers dont cause algae, they help plants grow and therfore no algae grows. The people who dont add fertilisers because they think Nitrate and phosphate cause algae usually always end up with alge lol. The plants are starved so they start to rot and produce ammonia. It is the ammonia that then cause the algae.

If it were me i would keep it as it is then add some cryptocoryne species to keep it in a jungle style. Maybe hack the java fern back a bit and lower it. Then you could position some crytocoryne balansae at the back to keep the height you have now with the java fern.
 
Hehe thanks for the kind words, it's not quite as pretty in the flesh when you can see all the algae and plant deficiencies!

Think I've decided what to do with the large fern, going to saw the vertical off the bogwood and replant it lower down, then move the horizontal bit into the foreground and cover the stump with the riccia that I've just ordered off ebay in a fit of optimism :lol:

Think the suggestion of going with more crpyts is a good one too... anyone tried the mixed crypt deals from plants alive? They seem very cheap.
 
just a word of advice, bogwood is a bugger to saw

i tried it with a wood saw on a piece about 5cm across and it took about 15 mins and alot of effort
 
just a word of advice, bogwood is a bugger to saw

i tried it with a wood saw on a piece about 5cm across and it took about 15 mins and alot of effort

Hah, I suspected that might be the case. Good job I got my technique down doing some roofing work last year :D
 
just a word of advice, bogwood is a bugger to saw

i tried it with a wood saw on a piece about 5cm across and it took about 15 mins and alot of effort

Hah, I suspected that might be the case. Good job I got my technique down doing some roofing work last year :D

i agree, good luck!
Never tried a crpt package however i would reccomend you to use aquafleur or tropica plants from Aqua Essentials. Youw will get about 8 plants in 1 pot that are well grown, whereas with cheaper places such as plants alive you pay for one plant, and that usually comes with one, or no leaves. Not that, it matters as crypts usually melt when you introduce them anyway, (they re-grow) but i find that PA crypts still take longer to grow again.
I only use plants alive for stem plants which grow fast so you can get a good deal.
 

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