I have a 90 gallon DT along with a sump. What I would really like to do is add a 20 gallon to the system along next to the DT. This tank is just collecting dust and I thought that it would look great next to my DT. I could add some LR
and some macro algae. I was also thinking about getting an anemone once everything is established.
The only problem is that it's not reef ready. I'd like for a pump to take water to the 20 gallon and another hose to bring it back to the main sump. So I'm just wondering how I drill two holes into this tank. More than likely, I would just drill two holes side by side near the top.
I do have a few questions: Is there a way to drill the holes without literally taking the tank apart? Is there something I could use to bring the water back to the sump without drilling and not spending too much? Would it just be easier to just make this 20 gallon into it's own system?