It has been almost two months since I updated this journal. Much progress has been made but at the same time, I could have done more but it was easier to just sit back and enjoy watching the inhabitants than to try complete the finishing touches to the rack. Yes I have been lazy and a bit of a procrastinator... haha.
This is what I have been doing...
I was battling an ugly BGA outbreak in the 4x2x2 tank. The before and after effect of using Chemiclean and siphoning out the dead BGA is evident in the photo below. Weeping moss concealed under that thick sludge of BGA.
My discus have finally decided to pair up simultaneously all within the span of these two months. I was lucky to have six of them paired up out of eight juvies that I grew out. I waited until I could see wrigglers to ensure it was a confirmed pair before I moved my favourite pair to the rack. The other two pairs are left to spawn in the community tank.
I installed a DIY mesh baffle (using SS mesh and poster hangers) on the center divider of the 4ft sump so water from the right section (grow out/hospital/quarantine tank) could flow onto the drip plate in the left section (sump) without having the fish/shrimps take a holiday in the sump.
I added sump media consisting of filter wool, ceramic noodles and marinepure spheres. Also installed a fluid reactor to run Macropore Gold and some K1 which are still floating.
Video of Macropore Gold in fluid reactor.
And... the most problematic and tedious bit...
I connected the shrimp tank to the canister filter and chiller. The plan was for water to exit the tank from the right most section via the SS strainer to the canister filter to the chiller and the return goes to the left most section. Water was to flow from the left sections to the right sections under the glass baffles through the substrate. Unfortunately, the flow through the divided sections was not adequate and this resulted in high water level line in the left sections and low water level in the right section and the outlet SS strainer was sucking in air to the canister filter.
Each section is too small to allow me to drill holes in the glass dividers and I do not want to remove the dividers to drill and re-silicone them in. After some thought, I decided to try an inverted water bridge concept under the glass dividers but I need to test the flow rate so as to find an optimum pipe diameter that can fit under the glass dividers and yet allow enough flow to accommodate the canister filter and chiller's recommended flow rate. Hope my drawings make sense.
Testing in progress using different diameter hose and pipe fittings... anything I could find really.
I was pretty happy with the tests and decided to construct the inverted water bridges using irrigation hose and DIY mesh guard to prevent shrimps from travelling between each section. The DIY instructions can be found here: http://shrimpkeepersforum.com/forum/topic/3041-diy-filter-guard/.
I have decided to use 2 x 19mm diameter hose for each section. This is the end result.
So far the tank has been running for a few weeks and I have moved more shrimps into each section. At the moment, I have moved some yellow cherries (some from @buck... thank you good sir), bloody marys (from my brown/black cherry colony), black cherries, low quality blue bolts, pandas and heaps of CRS, CBS and GB type mischlings. This is how the tank looks now.
I will most likely move some better quality shrimps into this tank for selective breeding in the coming weeks. Some of the candidates are...
Female shadow panda.
One of my better looking male blue bolt.
One of my prettier female blue bolt.
Next step is to install some night lights, run electrical trunking to hide all the wiring, and finally to paint the finishing coats for the MDF panels and mount them on the rack.
Stay tune. Thanks for reading. :)