Welcome to TONMO, the premier cephalopod interest community. Founded in 2000, we have built a large community of experts, hobbyists and enthusiasts, some of whom come together when we host our biennial conference. To join in on the fun, sign up - it's free! You can also become a Supporter for just $50/year to remove all ads and enjoy other perks, like Site Search. Follow us on Twitter or Facebook for more cephy goodness.
Does any one keep macro algae in their octopus tank? I collected a small amount from the area that Spike what captured and it looks pretty cool. was wondering there would be any problems with more plants.
We do. We keep Bladder (Giant) Kelp (Macrocystis pyrifera or Zigzag weed (Cystophora sp amongst others in our tank. Gives it a more naural feel. however you need to keep on top of cleaning as when it starts to die off it can be really nasty. Change the weed often and watch water parameters like a hawk!!!
Like everything else (and double for sw systems ) monitoring is important. Macro absorbs nitrate and adds oxygen (when the lights are on but, as with plants when the lights are off they give off CO2. Many people leave lights on it 24/7 in a separate refugium or alternate lighting with the primary for the same effect). There is a point of nitrate saturation and macros need to be pruned back to keep the young healthy parts growing. Where absorption is gradual, the exhausted algae will dump its nitrates back into the water all at once and can cause a spike with the release.
I have experimented with using a sump-fuge combination and have firmly decided to keep my sumps as equipment and water volume only containers for ease of maintenance and minimizing complications but I keep wanting to do a hang on refugium but have not worked out the logistics of making one and can't spend money on the tanks this year.
I am confused as to why you would consider a CO2 reactor for a ceph tank. I have never used one so my understanding may be incomplete but I thought the primary use was to inject CO2 for plants (primary use being FW planted aquariums). Adding CO2 does not make sense to me for a high Oxygen consumption tank as eliminating the CO2 in favor of O2 has always been a goal.